Last year’s runner-up Dominic Thiem reached the French Open quarter-finals with an impressive straight-set victory over home favourite Gael Monfils.

Thiem, 25, saw off the 14th-seeded Frenchman 6-4 6-4 6-2 in one hour and 48 minutes on Court Philippe Chatrier.

The Austrian will play 10th seed Karen Khachanov of Russia in the last eight.

Khachanov, 23, won 7-5 6-3 3-6 6-3 against Argentina’s eighth seed Juan Martin del Potro on Court Suzanne Lenglen.

It is the first time Thiem has won in straight sets at Roland Garros this year.

“It was my best match of the tournament so far, some great rallies, it’s always fun to play Gael,” he added.

Thiem produced a superb between-the-legs winner in the final set that brought applause from his opponent.

“There was no other choice to play that ball. When a ball like this goes in it is a hot shot!” said the fourth seed.

Khachanov took the opening two sets against Del Potro and lost the third but broke the Argentine’s serve at the start of the fourth set to move into the last eight of a Grand Slam for the first time.

“It’s the best result, for me to be in my first quarter-final in a Grand Slam,” said Khachanov.

“The atmosphere was really good and I really have good energy here.”

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Top seed Novak Djokovic created a piece of French Open history by becoming the first man to reach a 10th consecutive quarter-final after a routine win over Germany’s Jan-Lennard Struff.

The 32-year-old Serb, aiming to hold all four Grand Slams at the same time, won 6-3 6-2 6-2 in one hour 33 minutes.

Djokovic, who has not dropped a set at this year’s Roland Garros, said he was happy to be “cruising along”.

“I’m really pleased with every aspect of my game,” he added.

“So everything is coming together beautifully.

“I reached the quarter-finals and played as closest to my best tennis on clay as I think I can be at the moment.”

Djokovic will face fifth seed Alexander Zverev in the last eight after the German beat Italian ninth seed Fabio Fognini in four sets.

Zverev, 22, lost the opening set but recovered to win 3-6 6-2 6-2 7-6 (7-5) and make the quarter-finals for the second year running in Paris – the only place he has reached the last eight of a Grand Slam.

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After winning the Wimbledon, US Open and Australian Open titles, Djokovic is aiming to hold all four majors at the same time by claiming the French Open for a second time.

The 15-time major winner previously achieved the feat when he claimed his maiden Roland Garros title in 2016, which saw him become only the eighth man to complete a career Grand Slam.

But 12 months ago, after form and fitness problems, the possibility of Djokovic putting himself in this position again seemed unlikely.

Despite his recent dominance, the world number one has insisted 11-time Roland Garros champion Rafael Nadal must again be considered the favourite.

However, it is hard to separate the two top seeds judging by Djokovic’s ruthless performances – he has strolled to the last eight, albeit against opponents with an average ranking of 85.

Against Struff, Djokovic took his second break point of the match at 4-3, ending the world number 45’s resistance by putting away an overhead after he left the German scrambling in a baseline rally.

From there it was one-way traffic as Djokovic outclassed his opponent, winning 11 of the next 13 games to move two sets ahead and with a double break in the third.

Djokovic’s power and placement was simply too much for Struff, who could not convert a break point in what proved to be final game as the Serb upped the tempo again to seal victory.

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Johanna Konta is aiming to become the first British woman since 1983 to reach the French Open semi-finals – and her Fed Cup captain Anne Keothavong says she has yet to hit her peak.

Konta, 28, meets seventh seed Sloane Stephens, last year’s runner-up, in Tuesday’s quarter-final at 13:00 BST.

The Briton had never won a main-draw match at Roland Garros until this year.

“A lot of things are coming together but she can go up a few more levels if pushed,” Keothavong told BBC Sport.

“Jo has played some fantastic tennis and the best thing is she can play even better – she is still very much playing within herself.”

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Konta, seeded 26th, only claimed her maiden first-round victory on the Paris clay against German qualifier Antonia Lottner last week.

The former world number four fought off sickness to battle past American Lauren Davis in the second round, then eased past young Slovakian Viktoria Kuzmova and Croatian 23rd seed Donna Vekic to reach the last eight.

Now she is bidding to compete in her third Grand Slam semi-final after reaching the same stage at the 2016 Australian Open and Wimbledon in 2017.

‘Fed Cup success has helped Konta’

Former British number one Durie – the last woman to reach the Roland Garros last four – says she would be “very happy” for Konta if she emulated her feat.

“Johanna has worked out a way to use her game on the clay to really good effect,” Durie, 58, told BBC Sport.

“She’s worked very hard to get back to this kind of standard.”

After little previous clay-court pedigree, Konta has enjoyed surprise success on the surface having also reached two WTA Tour finals at the Morocco Open and Rome Masters going into Roland Garros.

That came after she helped Britain win promotion to the Fed Cup World Group II stage – which Durie believes has boosted Konta’s mental toughness.

Konta has won 13 of her 15 three-set matches this year, including a victory over American Stephens on clay in Rome.

“I think the whole team atmosphere at the Fed Cup worked very well and she won some really tough three-set matches,” former world number five Durie added.

“I think that has helped her so much mentally and for her to take so many three-set matches this year.”

‘Open draw gives Konta great chance’

Stephens is one of only three top-10 seeded players left in the women’s draw, along with Romania’s defending champion Simona Halep and Australian eighth seed Ashleigh Barty.

Konta and Barty are among five players in the Roland Garros quarter-finals for the first time, along with 17-year-old American Amanda Anisimova, Croatian 31st seed Petra Martic and Czech teenager Marketa Vondrousova

Keothavong believes Konta can take advantage of an open draw and go on to win the tournament.

“Any one of these players still left in the draw has a good shot at it,” she told BBC Radio 5 live.

“She is playing with confidence and it has been building over the last few weeks.

“She has performed very well and this has been her best season by a country mile on clay.

“With each match she is looking more and more comfortable.”

Along with the victory in the Rome second round, Konta also beat 2017 US Open champion Stephens in straight sets on the hard court at the Brisbane International in January.

Stephens says those two defeats will have no bearing on the encounter in Paris, insisting she will go in with “a clean slate”.

“When I played her in Brisbane it was the first match of the year, so that’s totally out of my mind,” said Stephens, who lost to Halep in last year’s final.

“And then the one in Rome, bad circumstances. Out of the mind.”

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BBC Sport has launched #ChangeTheGame this summer to showcase female athletes in a way they never have been before. Through more live women’s sport available to watch across the BBC this summer, complemented by our journalism, we are aiming to turn up the volume on women’s sport and alter perceptions. Find out more here.

Reigning French Open champion Simona Halep moved into the quarter-finals of the 2019 tournament with a 6-1 6-0 win over Polish teenager Iga Swiatek.

Third seed Halep, 27, won in 44 minutes against the 18-year-old and is the only one of the top six seeds left in the women’s singles at Roland Garros.

The Romanian will play either American Amanda Anisimova or Spain’s Aliona Bolsova in the quarter-finals.

American Madison Keys beat Katerina Siniakova in straight sets.

She now faces a quarter-final against Australian eighth seed Ashleigh Barty.

Halep – aiming to win her second Grand Slam title following her victory over American Sloane Stephens in the 2018 Paris final – won the opening four games of the match.

Swiatek, ranked 104th in the world, won the Wimbledon junior title in 2018 and defeated 16th seed Qiang Wang of China on her way to the last 16 of the French Open.

But any thoughts of greater resistance in the second set disappeared as she was broken at the first opportunity, with Halep going on to secure a routine victory.

She has now reached at least the last eight in Paris three years in a row.

Keys to face Barty in quarter-final

Keys, a semi-finalist at Roland Garros last year, progressed in one hour 16 minutes with a 6-2 6-4 victory over the 23-year-old Czech.

Barty, meanwhile, needed three sets to see off American Sofia Kenin, 20, who knocked out Serena Williams.

Barty eventually won 6-3 3-6 6-0 on Court Philippe Chatrier.

It means a first quarter-final in Paris for the 23-year-old and her second in as many Grand Slams this year, after reaching the last eight at the Australian Open.

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