Andrey Rublev is a man on a mission. One of three surging Russian #NextGenATP stars – with Karen Khachanov and Daniil Medvedev – Rublev is setting his sights on joining his countrymen in the Top 100 of the Emirates ATP Rankings. Competing at this week’s ATP Challenger Tour event in Irving, U.S.A., he is into the semi-finals as a qualifier, reeling off an impressive six wins in five days.

The 19 year old, who is working under the tutelage of former World No. 29 Fernando Vicente, is less than two months removed from reaching his third ATP Challenger Tour final in Rennes. His run on French soil came just weeks after battling World No. 1 Andy Murray in the second round of the Australian Open. ATPWorldTour.com caught up with Rublev at the Irving Tennis Classic.

Andrey, you are at No. 134 in the Emirates ATP Rankings. How do you see your recent progress as you push towards the Top 100?
I’m trying to focus more on the things I have to do on the court. If I do that, the ranking will come. I know that if I do that, getting to the Top 100 is just a question of time. I’ve improved a lot since last year, because I changed my team and the work now is absolutely different than before. I’m improving a lot every day and it’s a good feeling. I just need to keep fighting.

How has coach Fernando Vicente helped improve your game this year?
He tries to get the maximum from me as possible to improve my game. He explains to me how I have to play with my forehand and which balls to hit. That is, which are right to hit and attack with and which balls to defend with. Also, how to use my movement and then what I have to do between the points. He tries to give me everything to be better. Before I wasn’t even thinking about these things and now I see a big improvement.

How have you developed your game since winning your first Challenger title in Quimper a year ago? If you compare me now and last year, it’s another level. I just try to keep going and we’ll see. It’s all about understanding how to play and that it’s not just about hitting the ball. It’s a tough game and if you start to understand how to play the game, you will improve and start to feel these things.

You have had some great results in Challengers recently, reaching the final in Rennes and Mouilleron le Captif and semi-finals a few weeks ago in Quimper. How is the competition at this level helping your confidence?
You start to get confidence when you win more matches. It doesn’t matter if it’s in Challengers or ATP level. It depends. You can win one match against one really good player and it gives you more than if you win a tournament and beat the guys at your level. Of course, it’s hard to play Challengers because it’s really hard to win here. The level is really high and most of the time you play good players in the first round of ATP events, but sometimes it can be first round of a Challenger. For example, here in Irving I was playing second round of qualifying against Peter Gojowczyk and last month I was playing him in the semi-finals of a Challenger. And he was just playing second round of Indian Wells last week. It’s tough when he’s just playing in the main draw of a Masters 1000 and then I have to play him in qualifying at a Challenger. You just have to go through it. That’s it.

What did you learn from facing Andy Murray at the Australian Open to start the season?
It was a great experience for me. Now I can imagine how the top players are and for sure the next match against him I will play even better. From that match I could see the way he’s defending and how he places the ball where he wants to, even if he’s not in a good position. He’s always trying to make me feel uncomfortable. And how he served in the important moments, how he served close to the lines and how he hits so close to the baseline. It’s very impressive. That’s why he’s one of the best players.

You, Karen and Daniil are doing great things for Russian tennis. How does seeing them break into the Top 100 and reach ATP World Tour finals drive you to do the same?
Well, it’s not just them. Even when I see other young players have good results, it gives you motivation and you start to think that if they win, then I also have the chance to win. That helps you push yourself.

How often do you check the Emirates ATP Race To Milan standings and does that also motivate you?
Everywhere I go, I hear a lot about playing in Milan, but first I have to qualify. If I do the right things, then I’m going to have good results and have chances to qualify for Milan. If not, then it’s ok. It’s just the first year. Of course it’s great to try something new and play a tournament between teenagers and young players. We’ll see what happens.

Players competing at this week’s ATP Challenger Tour event in Shenzhen, China, stepped away from the court for a pair of off-site activities.

On Tuesday, Enrique Lopez-Perez of Spain joined WTA player Jovana Jaksic in visiting a Tsing Dynasty villa named Wanshi Habitat. They explored where the ancestors of Shenzhen citizens used to live and learned about Hakka culture and what the lifestyle entailed. They then delighted the local audience by hitting a few balls in a game of mini-tennis.

Enrique Lopez-Perez helps launch the #ATPChallenger event in Shenzhen. The Spaniard visited a Tsing Dynasty villa named Wanshi Habitat. pic.twitter.com/2mAhAhoNn9

— ATP Challenger Tour (@ATPChallenger) March 14, 2017

Also during the week, Thai brothers Sanchai Ratiwatana and Sonchat Ratiwatana tested their talents in a calligraphy classroom at the nearby Grandale International Tennis Academy. ‘Shenzhen Pingshan’ is the name of the tournament venue and it is the Chinese character they learned to write. After discovering the basic skills on holding a brush pen, the all-time winningest doubles team in Challenger history (42 titles) focused on writing the characters according to the teacher’s presentation.

The fourth annual Pingshan Open continues on Saturday, with Yuki Bhambri taking on Yuichi Sugita in one semi-final and Luca Vanni battling 2017 match wins leader Blaz Kavcic in the second.

• Three new faces – No. 3 seed Stan Wawrinka, No. 17 seed Jack Sock and No. 21 seed Pablo Carreno Busta join four-time champion and No. 9 seed Roger Federer in the BNP Paribas Open semi-finals on Saturday. Federer has cruised into his 10th Indian Wells semi-final without losing a set or serve while the trio of first-time semi-finalists each have lost at least one set.

• In the opening match, Wawrinka brings a 2-0 head-to-head record against Carreno Busta, who is making his ATP Masters 1000 semi-final debut. Wawrinka won both previous meetings on clay in 2013 and last year. The 25-year-old Spaniard saved two match points in his three-set quarter-final win over No. 27 seed Pablo Cuevas. Carreno Busta is trying to become the sixth different Spaniard to reach the final in the tournament’s 42-year history. Rafael Nadal is the last Spanish champion in 2013. If Carreno Busta advances to the biggest final of his career, he will have to earn his first Top 10 win. He is 0-14, having won three of 36 sets. Wawrinka, who won his last two matches in a third-set tie-break, is making his ninth ATP Masters 1000 semi-final showing (3-5) and he’s trying to reach his fourth final (1-2), the first in the U.S.

• In the second match, Federer takes a 2-0 head-to-head record against Sock. Federer won both meetings in straight sets in 2015, here in the 4R and in the semi-finals of his hometown tournament in Basel. The 35-year-old Swiss superstar is trying to reach his seventh Indian Wells final (4-2) and he is 6-3 in semi-final matches. He is two match wins away from claiming his record-tying fifth Indian Wells title and 90th of his career. Federer has held all 27 service games (saving one break point) and on Thursday he defeated Nadal for the third straight time for the first time in their 36-match rivalry. He is 5-0 vs. Top 10 opponents this season, his best showing to start the year since 2004 when he went 18-0 and finished No. 1. Sock is the first American to reach the semi-finals here since John Isner in 2014 and he is coming off the biggest win of his career over No. 5-ranked Kei Nishikori on Friday. All four wins en route to the semi-finals have come in three sets. He is attempting to earn back-to-back Top 10 tournament wins for the first time in his career and become the first American to reach the Indian Wells final since Isner in 2012 (l. to Federer).

• With Federer in the semi-finals, at least one member of the Big Four (Murray, Djokovic, Nadal, Federer) has played in the semis of 37 straight ATP Masters 1000s and 72 of the last 73. The last ATP Masters 1000 semi-final without a Big Four member was 2012 Paris-Bercy with David Ferrer, Jerzy Janowicz, Gilles Simon and Michael Llodra reached the semis. Three of the Big Four (except Murray) have accounted for 12 of the past 13 titles going back to 2004 when Federer captured the first of his four titles (2004-06, 2012). Overall a Top 5 player in the Emirates ATP Rankings has lifted the champion’s trophy in 15 of the past 16 years, except 2010 when No. 26 Ivan Ljubicic won the title.

Watch your favourite players work on their games by taking in a live stream at the BNP Paribas Open in Indian Wells.

Eighth seeds Lukasz Kubot and Marcelo Melo are through to their first ATP World Tour Masters 1000 final as a team after edging fourth seeds Jamie Murray and Bruno Soares 3-6, 7-5, 10-5 in the BNP Paribas Open semi-finals on Friday.

The Polish/Brazilian duo rallied from a 2-4 deficit in the second set, winning five of the next six games to force a Match Tie-break, which they controlled from the start to seal victory in one hour and 33 minutes.

Kubot and Melo joined forces full-time at the start of 2017. They have won two titles together before, capturing back-to-back Vienna crowns in 2015 and 2016.

In Saturday’s final, they will face sixth seeds Raven Klaasen and Rajeev Ram, who defeated Gilles Muller and Sam Querrey in the other semi-final on Thursday evening.

Murray and Soares, who finished as the No. 1 duo in the Emirates ATP Doubles Team Rankings last year, were looking to win their second successive ATP World Tour title, after coming into Indian Wells on the back of victory in Acapulco.

 Watch Full Match Replays

The late ‘90s had the Backstreet Boys and N’Sync, while the late 2000s had the Jonas Brothers. Could the “Backhand Boys” become this decade’s boy band craze?

Roger Federer released the world debut of himself, Grigor Dimitrov and Tommy Haas taking a second crack at singing “Hard To Say I’m Sorry,” the classic ‘80s song from American rock group Chicago, during an on-court interview at the BNP Paribas Open on Thursday. He then posted the video to his Twitter account shortly after.

The new release is a follow-up to their initial attempt at the track in January. Haas’ father-in-law, world-renowned record producer and musician David Foster, once again accompanied them on piano.

Looking more comfortable as a man band, the trio’s vocal range has improved noticeably over the past two months. They even upped the production value of the new release by including a cameo appearance from Novak Djokovic.

The Swiss maestro returns to a more familiar vocation on Saturday when he plays either Jack Sock or Kei Nishikori for a place in the BNP Paribas Open final.