In honour of Carlos Alcaraz’s 20th birthday, ATPTour.com celebrates by reliving 20 facts, memories and moments that have made the Spaniard’s career historic thus far.

20 – Number of weeks Alcaraz first stayed at No. 1 in the Pepperstone ATP Rankings after he rose to top spot following his 2022 US Open triumph.
19 – Alcaraz’s age when he rose to No. 1 in the Pepperstone ATP Rankings for first time. He is the only teenager in the Open Era to top the men’s rankings.
18 – Age when he lifted his maiden ATP Tour title in Umag, becoming the youngest tour-level champion since 18-year-old Kei Nishikori won in Delray Beach in 2008.
17 – Beat Botic van de Zandschulp on Court 17 when aged 17 on his Grand Slam main-draw debut at the Australian Open in 2021.
16 – Years old when he made his tour-level debut. The Spaniard defeated Albert Ramos-Vinolas 7-6(2), 4-6, 7-6(2) in Rio de Janeiro in 2020.
15 – Age when he beat then-World No. 140 Pedro Martinez to earn first Top 200 win. He was not only the first player aged 15 & under to upset a Top 200 opponent since Ryan Harrison in 2008, but he was just the fifth 15-year-old to do so in the past 20 years, joining Rafael Nadal, Richard Gasquet and Bernard Tomic.
14 – Seed Alcaraz was when he clinched his first ATP Masters 1000 crown in Miami, becoming the youngest champion in the tournament’s history.
13 – Age Alcaraz and Nadal’s paths would cross for the first time. Alcaraz posed for a picture with the Spaniard after winning a competition on the Rafa Nadal junior tour. They have since met three times on court, with Nadal leading Alcaraz 2-1 in their ATP Head2Head series.
12 – Number of tour-level finals Alcaraz has played.
11 – September 2022. The date Alcaraz defeated Casper Ruud 6-4, 2-6, 7-6(1), 6-3 to win the US Open title and climb to No. 1.

10 –  The Spaniard climbed into the Top 10 for the first time after winning the title in Barcelona in 2022. Aged 18, he was the youngest player to crack the Top 10 since Nadal did exactly 17 years before after he lifted his first Barcelona trophy.
9 – Number of tour-level titles the Spaniard has won.
8 – Number of five-set wins Alcaraz has earned at Grand Slams, with five coming at the US Open. He has only lost once in a fifth set at a major, coming against Matteo Berrettini at the 2022 Australian Open.
7 – Top 5 wins. The 19-year-old earned his first against then-World No. 3 Stefanos Tsitsipas at the US Open in 2021.
6 – Alcaraz will play in his sixth ATP Masters 1000 semi-final on his birthday against Borna Coric in Madrid.
5 – Consecutive matches won at the 2021 Next Gen ATP Finals to become an undefeated champion at the 21-and-under year-end event.
4 – Number of ATP Masters 1000 crowns.
3 – By defeating Novak Djokovic, Rafael Nadal and Alexander Zverev en route to the Madrid title in 2022, Alcaraz defeated the Top 3 seeds at the event. He also became the first player to beat the Serbian and Spaniard back-to-back on clay.
2 – In Indian Wells in 2023, Alcaraz defeated Tallon Griekspoor to earn 100 tour-level wins. He was the second fastest player to reach the milestone behind John McEnroe.
1 – His ranking at the end of 2022, making him the first and youngest player to finish No. 1 in the 50 editions of the year-end Pepperstone ATP Rankings.

Jan-Lennard Struff’s run at the Mutua Madrid Open appeared to be short-lived when he lost in the final round of qualifying last Tuesday. Nine days later, he is into his first ATP Masters 1000 semi-final.

The lucky loser upset fourth seed Stefanos Tsitsipas 7-6(5), 5-7, 6-3 to reach the last four at the Caja Magica. The German will next face Aslan Karatsev, who ousted him in qualifying.

“It feels amazing. It was a very, very hard battle. I knew before I needed to perform at my best,” Struff said in his on-court interview. “Very, very happy that I played this well today. The crowd was amazing. It was an unbelievable atmosphere and really, really happy that I won.”

Struff is the third lucky loser to advance to the semi-finals of a Masters 1000 event, joining Thomas Johansson (2004 Toronto) and Lucas Pouille (2016 Rome). He has now split six ATP Head2Head matches with Tsitsipas and is two victories from hoisting his first ATP Tour trophy. Struff knows he must refocus for his rematch with Karatsev.

“Aslan is playing amazing this week so far and he beat me pretty easily in qualies I need to say. I didn’t play the best tennis in that match, but he made me play not good I feel like,” Struff said. “I think we need to analyse it now, focus on the match tomorrow and I hope I can do better.”
 

It is the high point of a strong comeback for the 33-year-old. Earlier this year, Struff was as low as No. 167 in the Pepperstone ATP Rankings after suffering a right foot injury last season in Miami.

Struff has leveraged his powerful game throughout the tournament in the Spanish capital and he is now up to No. 31 in the Pepperstone ATP Live Rankings. The German has lost just five service games in the main draw and dropped just one to the fourth seed.

Both players were in good form inside Manolo Santana Stadium, using their serves to take control of points and backing it up by bludgeoning groundstrokes and often coming to net on the red clay. When Struff double faulted away the first break of the match at 5-5 in the second set, it seemed the moment was potentially affecting him.

But the German had a short memory and immediately clicked back into gear. Having faced the first nine break points of the match, he earned his first break point of the match at 2-1 in the third set. The Warstein-native seized the opportunity with both hands, crushing back-to-back backhands, which his opponent was unable to handle. Struff’s down-the-line backhand proved especially useful, often putting the Greek into difficulty.

Tsitsipas entered the match with an 8-1 record in deciding sets this season and 9-2 on clay in his career, so it was no surprise that he continued to put pressure on the German, who was pursuing the biggest win of his career.

But Struff had an answer for every question the German asked, saving break point at 4-2 with huge hitting to get out of trouble after misfiring with his forehand earlier in the game. He also trailed 15/30 when serving for the match. But after Tsitsipas saved one match point with a jaw-dropping forehand passing shot, Struff won two consecutive points, completing his victory when the fourth seed missed a backhand return long.

“He was serving so good the whole match and it was so tough to get into points. But I somehow won the first set,” Struff said. “I felt like he was better in the first set. I got out of many tricky situations. He was 4/1 up in the tie-break.

“I thought I played [in] the second set a very, very good set, but I played a bad game at 5-all. And in the third set I came out aggressive again and it was a huge win for me.” 

Since gaining entry into the main draw as a lucky loser, Struff has defeated Lorenzo Sonego, 32nd seed Ben Shelton, Banja Luka champion Dusan Lajovic, Pedro Cachin and Tsitsipas.

Did You Know?
Struff has earned five wins against Top 5 opponents. Two of those victories have come in the past month, having upset World No. 4 Casper Ruud en route to the Monte-Carlo quarter-finals.

The action at this week’s ATP Challenger Tour 175 events heated up Thursday, when Aix-en-Provence top seed Tommy Paul advanced to the quarter-finals in southern France. Daniel Elahi Galan’s victory against World No. 34 Yoshihito Nishioka was one of several upsets at the Cagliari Challenger.

American Paul cruised past Frenchman Geoffrey Blancaneaux 6-2, 6-2 to reach the quarter-finals of the Open Aix Provence Credit Agricole.

“Tough conditions today, it was windy. But overall I’m happy with how I played, I wish I would’ve served better,” Paul said in his on-court interview. “More first serves in the court would’ve been better, but I’m happy to walk away with the win.”

World No. 17 Paul is the first Top-20 player to be competing at a Challenger Tour event since Stan Wawrinka played the Prague Challenger in 2020. The 25-year-old Paul will face Jurij Rodionov in the last eight. The six-time Challenger champion Rodionov advanced after outlasting Tomas Martin Etcheverry 6-3, 1-6, 7-6(5).

Andy Murray escaped alternate Laurent Lokoli 6-4, 5-7, 6-3. Despite having four match points in the second set, three-time major champion Murray was pushed to a decider by the home hope before sealing victory after two hours, 42 minutes.

Lucky loser Harold Mayot earned the first Top-50 win of his career Thursday when he upset second seed Brandon Nakashima 7-6(2), 6-3. The Frenchman Mayot will next meet Alexander Bublik, who downed Otto Virtanen 6-4, 6-4.

Two teenagers are into the Aix-en-Provence quarter-finals. Luca Van Assche, 18, rallied from a set down to beat countryman and third seed Adrian Mannarino 3-6, 6-3, 6-2. The 18-year-old Arthur Fils needed two hours, 28 minutes to oust Quentin Halys 7-5, 4-6, 7-6(2).

David Goffin also advanced in Aix-en-Provence after defeating Dan Added 6-4, 3-6, 6-2.

Cagliari
The upset of the day came when Colombia’s Galan defeated top seed Nishioka 2-6, 6-1, 6-4 at the Sardegna Open.

Galan, 26, is building off his career-best season. In 2022, he stunned World No. 5 Stefanos Tsitispas in the opening round of the US Open and reached a career-high No. 67 in November.

How did that feel? “Pretty good” 😁

Daniel Elahi Galan sees off top seed Nishioka 2-6, 6-1, 6-4 to secure a spot in the Cagliari quarters!#ATPChallenger pic.twitter.com/QhStcxIK8n

— ATP Challenger Tour (@ATPChallenger) May 4, 2023

Galan had to rally from a set down in each of his first two matches in Cagliari, where he will next face Borna Gojo after the Croatian earned a 6-4, 7-5 victory against Yosuke Watanuki.

Also in Cagliari action, Thanasi Kokkinakis won 26 of 27 first-serve points to defeat Alessandro Giannessi 6-4, 6-2. The Aussie will meet fourth seed Laslo Djere in the last eight after the Serbian fended off all five break points faced to defeat Jozef Kovalik 6-4, 6-2.

Thanasi Kokkinakis in action at the ATP Challenger 175 event in Cagliari. Credit: Mike Lawrence/ATP Tour

Taro Daniel ousted third seed Mackenzie McDonald 6-2, 6-3 to book his ticket to the quarter-finals, where he will meet Ugo Humbert.

Home hope and #NextGenATP star Giulio Zeppieri has earned back-to-back wins against countrymen. After surviving Andrea Vavassori in the opening round, Zeppieri moved past Mattia Bellucci 6-2, 6-0 to set a quarter-final clash against Ben Shelton or Fabian Marozsan.

Rohan Bopanna and Matthew Ebden rallied from a set down Thursday to reach their second ATP Masters 1000 final of the season. The Indian Wells champions will contest the title with Top-15 singles players Karen Khachanov and Andrey Rublev, who produced their best match of the tournament to advance.

The Indian-Australian duo ousted eighth seeds Santiago Gonzalez and Edouard Roger-Vasselin 5-7, 7-6(3), 10-4 in the last four of the Mutua Madrid Open. In the Match Tie-break, Bopanna and Ebden won four of seven return points to book their ticket into Saturday’s final.

Bopanna and Ebden, seeded seventh, are aiming for their third title of the season (Doha, Indian Wells). Their strong start to the season has lifted them to No. 1 in the Pepperstone ATP Live Doubles Teams Rankings. 

Gonzalez and Roger-Vasselin have won titles in Marseille and Miami this season. Their last two losses have come to Bopanna and Ebden, having suffered a defeat to the team in Barcelona.

Khachanov and Rublev, who faced each other in the singles round of 16, continued their run by defeating fourth seeds Marcelo Arevalo and Jean-Julien Rojer 6-4, 6-4. Khachanov and Rublev won 31 of 37 first-serve points and fended off all three break points faced to advance. 

After dropping the opening set in each of their first three matches, Khachanov and Rublev needed just one hour, 13 minutes to reach their third doubles final together (2018 Miami, 2019 Paris Masters).

The third clay-court ATP Masters 1000 event of the season will see the world’s best players compete at the Internazionali BNL d’Italia, with World No. 1 Novak Djokovic, Carlos Alcaraz, Rafael Nadal, and more in action.

Here’s what you need to know ahead of the tournament in the Italian capital:

When is the Internazionali BNL d’Italia?

The 2023 Internazionali BNL d’Italia will be held from 10-21 May. The clay-court ATP Masters 1000 tournament, established in 1930, will take place at the Foro Italico in Rome, Italy. The tournament director is Sergio Palmieri.

Who is playing at the 2023 Internazionali BNL d’Italia?

The Internazionali BNL d’Italia will feature stars such as 10-time champion Rafael Nadal, defending champion Novak Djokovic, Carlos Alcaraz, Stefanos Tsitsipas, Monte-Carlo champion Andrey Rublev and more.

When is the draw for the Internazionali BNL d’Italia?

The Rome draw will be made at a time yet to be confirmed.

What is the schedule for the Internazionali BNL d’Italia ATP Masters 1000 event?

* Qualifying: Monday, 8 May at 10 a.m, Tuesday, 9 May at 11 a.m.
* Main Draw: Wednesday, 10 May – Sunday, 21 May at 11 a.m. and 7 p.m.
* Doubles Final: Sunday, 21 May at 1 p.m.
* Singles Final: Sunday, 21 May at 4 p.m.
*View On Official Website

What is the prize money and points for the Internazionali BNL d’Italia?

The prize money for the Internazionali BNL d’Italia is €7,705,780 and the Total Financial Commitment is €8,637,966.

SINGLES
Winner: €1,105,265 / 1,000 points
Finalist: €580,000 / 600 points
Semi-finalist: €308,790/ 360 points
Quarter-finalist: €161,525 / 180 points
Round of 16: €84,900 / 90 points
Round of 32: €48,835 / 45 points
Round of 64: €27,045 / 25 points
Round of 96: €16,340 / 10 points

DOUBLES (€ per team)
Winner: €382,420 / 1,000 points
Finalist: €202,850 / 600 points
Semi-finalist: €108,190 / 360 points
Quarter-finalist: €54,840 / 180 points
Round of 16: €29,300 / 90 points
Round of 32: €15,780 / 0 points

How can I watch the Internazionali BNL d’Italia?

Watch Live On Tennis TV
TV Schedule

How can I follow the Internazionali BNL d’Italia?

Hashtag: #IBI22
Facebook: @internazionalibnlditalia
Twitter: @InteBNLdItalia
Instagram: #IBI22

Who won the last edition of the Internazionali BNL d’Italia in 2022?

Novak Djokovic won the 2022 Internazionali BNL d’Italia singles title with a 6-0, 7-6(5) victory against Stefanos Tsitsipas in the championship match (Read & Watch). Nikola Mektic and Mate Pavic lifted the doubles trophy in Rome with a 6-2, 6-7(6), 12-10 triumph against John Isner and Diego Schwartzman in the final (Read More).

Who holds the Rome record for most titles, oldest champion, youngest champion and more?

Most Titles, Singles: Rafael Nadal (10)
Most Titles, Doubles: Brian Gottfried, Raul Ramirez, Daniel Nestor, Bob Bryan, Mike Bryan (4)
Oldest Champion: Novak Djokovic, 34, in 2022
Youngest Champion: Bjorn Borg, 17, in 1974
Highest-Ranked Champion: No. 1 Ivan Lendl in 1986, 1988, Jim Courier in 1992, Pete Sampras in 1994, Rafael Nadal in 2009, Novak Djokovic in 2015, 2020, 2022
Lowest-Ranked Champion: No. 47 Felix Mantilla in 2003
Last Home Champion: Adriano Panatta in 1976
Most Match Wins: Rafael Nadal (69)

View Who Is Playing, Past Champions, Seeds, Points & Prize Money Breakdown

Aslan Karatsev reached his first ATP Masters 1000 semi-final at the Mutua Madrid Open on Thursday when he overcame China’s Zhang Zhizhen 7-6(3), 6-4 to become the second qualifier to advance to the last four in tournament history.

In an intriguing clash between two first-time Masters 1000 quarter-finalists, it was Karatsev who held his nerve at key moments inside Manolo Santana Stadium. The 29-year-old saved all three break points he faced in the first set and produced a clean-hitting display in the second set to triumph after one hour and 40 minutes.

“I am happy with my condition. Back to the top level,” Karatsev said. “Playing well and feeling well. From the qualifying, match by match, it has got harder, so mentally you have to be there more. Because your opponent doesn’t give you any free points so you have to be there yourself. The important thing is now recover well.”

Having dropped as low as No. 129 in the Pepperstone ATP Rankings on 17 April, Karatsev has refound his best form in Madrid, defeating seeded players Botic van de Zandschulp, Alex de Minaur and Daniil Medvedev.

Playing with confidence against Zhang, Karatsev stuck his groundstrokes aggressively in the fast conditions, hitting 29 winners to improve to 1-1 in his ATP Head2Head series against Zhang. With his ninth tour-level win of the year, Karatsev has jumped to No. 51 in the Pepperstone ATP Live Rankings.

“I started the year inside the Top 100 then I dropped and lost some matches. You have to keep going and believe and I have a team behind me that is always supporting me and believing in me,” Karatsev said.

The qualifier will aim to continue his run when he takes on fourth-seeded Greek Stefanos Tsitsipas or German lucky loser Jan-Lennard Struff in the semi-finals.

Former World No. 14 Karatsev has a history of producing on the big stage. At the 2021 Australian Open, he moved past seeds Diego Schwartzman, Felix Auger-Aliassime and Grigor Dimitrov to become the first man to reach the semi-finals on Grand Slam debut.

History-making Zhang was the first Chinese man to reach the quarter-finals at an ATP Masters 1000. The 26-year-old earned upset wins against Denis Shapovalov, Cameron Norrie and Taylor Fritz in the Spanish capital to advance to his third tour-level quarter-final. He leaves the clay-court event up 33 spots to No. 66 in the Pepperstone ATP Live Rankings.

In March 2011, 14-year-old Zhang Zhizhen played a junior tournament in Haikou, China against 15-year-old Cameron Norrie. The result was lopsided: Norrie eased past Zhang 6-2, 6-0. The lefty standout enjoyed a distinguished junior career, dominated college tennis for Texas Christian University and surged into the Top 10 of the Pepperstone ATP Rankings.

The path to stardom was not as direct for Zhang, who never climbed higher than World No. 166 as a junior. But it was almost fitting that just more than 12 years after that match in China, Zhang earned the biggest win of his professional career against Norrie, eliminating the Briton 2-6, 7-6(2), 7-6(2) on Monday at the Mutua Madrid Open to become the first player from his country to reach the fourth round of an ATP Masters 1000 event.

“Before the match I didn’t even think I was going to be here in the second week of Madrid,” Zhang said after that match. “Now I made it!”

The 26-year-old’s journey at the Caja Magica did not stop there. Zhang then won his third consecutive final-set tie-break on Tuesday when he upset eighth seed Taylor Fritz for a place in the quarter-finals. A win against Aslan Karatsev on Thursday will see him become the first Chinese player in history to crack the world’s Top 50.

It is a massive accomplishment for a player who was never expected to be here. Zhang’s close friend Wu Yibing, the highest-ranked Chinese man in history, was junior World No. 1, as was 18-year-old countryman Shang Juncheng. They were much more highly touted than Zhang, according to Chinese tennis reporter Zhang Bendou.

“What makes Zhizhen unique and different is first, he was never a prodigy, let alone junior World No. 1 like Wu and Shang,” he said. “He never played a junior Grand Slam, he didn’t have a high junior ranking. However, he is not a small-town boy either. He comes from Shanghai. His father is a famous soccer star.”

Zhang’s father is Zhang WeiHua, who was a defender for Shanghai ShenHua. When he was young, his father gave him three options: study, swim or play tennis. Studying was too boring and his swimming coach was too tough. Zhang’s life in tennis began by process of elimination.

As Wu Di, one of the best Chinese male tennis players in history said, Zhang was never the best singles competitor in his age group. If anything, he enjoyed more success on the doubles court.

^{Zhang Zhizhen and Wu Di in Zhuhai in 2019. Photo: ATP Tour}
But having secured his first ATP Tour main draw singles win in 2015 just before his 19th birthday, there has always been potential in Zhang’s game.

“He has for sure the shots for Top 50 or Top 30. But sometimes he did not know how to use [them],” Wu said. “He’s a smart guy, but too smart. Good serve, forehand and everything is okay, but you have to adapt.”

Zhang’s first several years on Tour were filled with inconsistency, which prevented him from making himself a constant presence at the top level.

“He thinks he can beat anybody. But every day is different. Sometimes [you] do, sometimes [you] don’t. But he only wants it to be a nice day,” Wu said. “[It is not nice] every day. Today’s rainy. Tomorrow is sunny. But you have to compete quietly.”

The Chinese star slowly made progress. He cracked the world’s Top 200 in 2019 behind his first two ATP Challenger Tour titles. Two years later, Zhang qualified for Wimbledon, becoming the first Chinese man to compete in the main draw at the tournament in the Open Era. Last year he accomplished the same feat at the US Open (as did Wu Yibing).

His consistency improved and with it came a surge up the Pepperstone ATP Rankings. Last October Zhang became the first Chinese player to break into the world’s Top 100, a significant moment according to Zhang Bendou.

“Many Chinese are very proud of what our country has achieved in the past 30 years. However, if you talk about sports, men’s tennis seemed like it was our ‘black hole’ forever,” he said. “We’ve achieved so many great things, but we couldn’t even produce one ATP Top 100 player for such a long time, which is really unthinkable.

“For ZZZ finally conquering that goal, it was a big success and relief as well for Chinese people, especially sports fans here, that yes, Zhizhen and Yibing have both proven that Chinese men can also do it.”

^{Wu Yibing, Shang Juncheng and Zhang Zhizhen this year in Melbourne, where they all played in the main draw. Photo: ATP Tour}
The Chinese player has trained in various locations throughout the world in an attempt to improve his game. He has also remained close to his Shanghai team. Earlier this year, Wu Di spent several weeks traveling with him to help as needed.

“Mentally he’s strong because otherwise another Chinese guy cannot stay out of China for years,” Wu said. “He can.”

As Zhang has shown in Madrid, he has the game to compete with some of the best players in the world. It would be difficult to beat former Nitto ATP Finals competitors and Masters 1000 champions like Norrie and Fritz otherwise.

“For many years, people here were always talking about if Asian men are not strong enough to compete with Western players,” Zhang Bendou said. “Even if they could, they are usually injury-prone. ZZZ is different with Wu and Shang in this sense. He is tall and strong and he is all about power. Just look at how big his forehand and serve could be in Madrid.”

Zhang will try to use those assets again in the quarter-finals against big-hitting Aslan Karatsev, whom he admitted defeated him 6-0 in a practice set.

“I’ll do my best,” Zhang said after his last match. “Here everyone is a great player, huge player. They all have some very good results. [I will] try to do the best what I can do.”

Borna Coric ended Daniel Altmaier’s dream run at the Mutua Madrid Open on Wednesday evening. The 17th seed eliminated the lucky loser 6-3, 6-3 to set a semi-final clash against top seed and defending champion Carlos Alcaraz.

“I always love to play here in Madrid. I have very, very nice memories from here and I knew I could play well,” Coric said in his on-court interview. “I came here very early to prepare myself for the tournament, as it’s, I would say, a little bit different to the next tournaments. I’m just very happy to be in the semi-finals.”

Coric’s experience on the big stage showed inside Manolo Santana Stadium. The 26-year-old, who lifted his maiden ATP Masters 1000 trophy last year in Cincinnati, earned a service break in his second return game and never looked back to triumph after one hour and 14 minutes.

Appearing in the Madrid quarter-finals for the second time — he did so in 2017 as a lucky loser — Coric took full advantage of his opportunity. The Zagreb-native dominated behind his first serve and did not face a break point against his German opponent.

Altmaier arrived in the Spanish capital with one main draw Masters 1000 win on his resume, and he lost in the final round of qualifying to Jurij Rodionov. But after entering the draw as a lucky loser, the 24-year-old surged to the quarter-finals without losing a set.

However, he struggled to find consistency from the baseline early against Coric and that proved costly. Altmaier double faulted away the first break of the match at 1-2 and struggled to get back on terms from there. The German showed plenty of power with his one-handed backhand, but with his deep return position was never able to put much pressure on the Croatian’s service games in the first set.

That changed as the match wore on, when Altmaier was able to put pressure on the Coric forehand, the less steady of the 17th seed’s groundstrokes. But after securing an early break, the three-time ATP Tour titlist made timely shots, including a beautiful backhand lob to get out of trouble at 3-2 40/40.

The quick win was a welcome reprieve for Coric, who needed three hours and 28 minutes to oust home favourite Alejandro Davidovich Fokina in Tuesday’s fourth round. Coric won 90 per cent of his first-serve points and will hope to find the same level of success against Alcaraz, whom he will play for the first time.

“He’s absolutely an unbelievable player in unbelievable shape in the moment as well,” Coric said. “So he’s the favourite and I’m going to just go out there and I’m going to enjoy himself. I like to play here in this stadium and it’s going to be a very cool feeling for sure.”

The remaining two quarter-finals will light up the Caja Magica on Thursday at the Mutua Madrid Open, where fourth seed Stefanos Tsitsipas headlines the action in the bottom half of the draw at the ATP Masters 1000.

The Greek competes in his 19th Masters 1000 quarter-final while his opponent, Jan-Lennard Struff, will be appearing in just his third. First-time quarter-finalists Zhang Zhizhen and Aslan Karatsev are the other two players hoping to join Carlos Alcaraz and Borna Coric in the semi-finals.

ATPTour.com looks ahead to Thursday’s scheduled action on the clay of the Spanish capital.

[4] Stefanos Tsitsipas (GRE) vs. [LL] Jan-Lennard Struff (GER)

A big-serving battle kicks off the night session on Manolo Santana Stadium as 2019 finalist Tsitsipas meets the former World No. 29 Struff for the first time since 2020.

Tsitsipas leads 3-2 in the pair’s ATP Head2Head series, but it was the German who prevailed in their only previous clash on clay in 2019 in Barcelona. The Greek will also be wary that he is facing a man in form: Although Struff entered the main draw at the Caja Magica as a lucky loser, he is appearing in back-to-back ATP Masters 1000 quarter-finals after his run to that stage in Monte-Carlo.

Finding rhythm on serve could be decisive to the outcome of the match. Tsitsipas landed 39 straight first serves in his second-round triumph against Dominic Thiem but was broken three times by Bernabe Zapata Miralles in the fourth round. The Greek will hope to rediscover his best delivery and maintain the high level off his backhand wing that he found in the fourth round as he chases his first title of 2023.

“It’s like hitting a home run with a baseball bat,” said Tsitsipas, when asked about the series of down-the-line backhand winners he hit against Zapata Miralles. “I’m happy with how I was able to [direct] the ball. There were a few times when the ball came in deep and you’d expect a cross-court, but I was able to [redirect it down the line]. It’s something I have been working on.”

Struff, who lost to fellow quarter-finalist Karatsev in the final round of qualifying, possesses a booming delivery of his own and has defeated Lorenzo Sonego, Ben Shelton, Dusan Lajovic and Pedro Cachin so far in his personal-best run in Madrid. With the German battling to victory across three sets in three of those triumphs, the fourth-seeded Tsitsipas will be prepared for a tough challenge on Thursday in the Spanish capital.

Zhang Zhizhen (CHN) vs. [Q] Aslan Karatsev

An intriguing quarter-final matchup between two players enjoying a hot streak on the Madrid clay, the World No. 99 Zhang takes on No. 121-ranked Karatsev in the first match of the day on Manolo Santana Stadium.

Both are playing in their maiden ATP Masters 1000 quarter-final, but Karatsev is the more experienced on the big stage. The 29-year-old is a three-time ATP Tour titlist and became the first man in the Open Era to reach the semi-finals on Grand Slam debut at the 2021 Australian Open.

As clean a ballstriker as anyone on Tour, Karatsev is chasing his seventh straight win in Madrid after coming through qualifying to earn a spot in the main draw. His stunning straight-sets victory against Daniil Medvedev in the fourth round, a display full of trademark baseline winners, was a reminder of his ability to take the racquet out of his opponent’s hand.

On the other side of the net on Thursday, however, will be the history-making Zhang. The No. 66 in the Pepperstone ATP Live Rankings, he will become the first Chinese player in Pepperstone ATP Rankings history to break the Top 50 should he defeat Karatsev. The 26-year-old has upset 11th seed Cameron Norrie and eighth seed Taylor Fritz en route to becoming the first ATP Masters 1000 quarter-finalist from his country.