Coco Gauff continued her fine form with a 6-3 6-3 quarter-final triumph over fellow American Amanda Anisimova at the Emilia-Romagna Open.

In a contest between two teenage stars, it was 17-year-old Gauff who sealed her second semi-final spot in as many weeks, having made the last four at the Internazionali d'Italia.

Third seed Gauff will face Katerina Siniakova next, after the Czech followed up her win over Serena Williams with a 7-5 6-1 defeat of Caroline Garcia.

"I was pretty satisfied with the way I played," Gauff said, after fending off Anisimova.

"I do think I could have served a little bit better, but other than that, I was pretty happy with the way I played."

Despite her valid concerns, Gauff won 72 per cent of points after landing her first serve and forced six breaks to win in style, reeling off six games on the trot from 3-0 behind in the second set.

The other semi-final will see second seed Wang Qiang take on Sloane Stephens.

Wang prevailed 7-6 (7-4) 3-6 7-5 against Petra Martic, while Stephens saw off Sara Errani 6-3 6-0.

It was another rain-affected day at the Serbia Open, where Maria Camila Osorio Serrano managed to get past Kamilla Rakhimova 4-6 6-3 6-4.

Anna Kalinskaya and Reka Luca Jani were locked at one set apiece in the only other match to get started before the weather halted play.

Jannik Sinner fought back to claim victory in a thrilling battle with Aslan Karatsev at the Lyon Open, where David Goffin crashed out.

Sinner lost to Karatsev in Dubai earlier this year but recovered from a dreadful start to win 0-6 6-3 6-4 in two hours and 32 minutes.

There were seven breaks of serve in a thrilling encounter between two players bidding for an ATP Finals spot as Karatsev – who has beaten Novak Djokovic and Daniil Medvedev this year – was ultimately defeated.

"It was tough," said Sinner. "He is a great player, especially this year with some big results. 

"I dug deep and I am happy to have won. It is definitely good to have the support of the crowd in order to come back from Aslan's fast start."

Lorenzo Musetti followed up his impressive opening round win over Felix Auger Aliassime by defeating Sebastian Korda on Wednesday.

But it was a bad day for fourth seed Goffin as he suffered a 7-6 (7-4) 6-3 loss to Aljaz Bedene, who will now take on Musetti.

Karen Khachanov saw off Kamil Majchrzak in straight sets and he will play the winner of Diego Schwartzman v Richard Gasquet, a match which has been rescheduled for Thursday due to rain.

At the Geneva Open, third seed Casper Ruud won 7-5 6-2 against Tennys Sandgren.

Rising star Ruud – who only gave up one break point – has now reached six consecutive quarter-finals on the ATP Tour and will face Dominik Koepfer in the last eight.

Fourth seed Grigor Dimitrov was a 6-4 6-4 winner over Ilya Ivashka, while second seed Denis Shapovalov is scheduled to play Marco Cecchinato in the last match of the day.

Seeds Petra Martic and Coco Gauff were victorious at the Emilia-Romagna Open on Wednesday, but injury cut short Sara Sorribes Tormo's run in the tournament.

Gauff recorded five breaks of serve as she overcame Italian Camila Giorgi in routine fashion, a 6-2 6-3 triumph securing the third seed a place in the quarter-finals.

The American did have a few issues on her own serve, leading to seven double faults, but ended up winning in one hour and 11 minutes.

Martic, the second seed at the event, was made to work in the first set of her match against Ludmilla Samsonova, both players saving a break point on serve as it went the distance.

There was little to split the pair in the tie-breaker too, Martic edging it 7-5 as she capitalised on her first opportunity to take the set.

The second was more straightforward for the Croatian, an early beak of serve putting her in front before she repeated the trick to wrap up victory in the ninth game.

There were wins in straight sets for fellow seeds Caroline Garcia and Wang Qiang too, as they defeated Anna-Lena Friedsam and Martina Di Giuseppe respectively.

For Garcia, the triumph means a first quarter-final appearance in the 2021 season.

Sorribes Tormo was the only seeded player to exit in the day’s action, the Spaniard forced to retire at 2-2 in the deciding set against Sara Errani due to a problem with her left thigh.

"I'm very sorry for Sara. It was a battle, I know every time we play together it is like this. I was mentally ready to fight, to suffer," Errani said in her on-court interview.

Top seed Serena Williams is already out, beaten in straight sets by Katerina Siniakova to deal the 23-time grand slam champion a further blow ahead of this year's French Open.

Serena Williams saw her hopes of an extended run at the Emilia-Romagna Open come to an early end on Tuesday, the top seed succumbing to Katerina Siniakova in straight sets.

Williams had taken up a wildcard to play in the tournament following an early exit in Rome, where she was beaten by Nadia Podoroska in her opening contest in the clay-court swing.

Her campaign in Parma got off to a better start on Monday, a 6-3 6-2 result against WTA Tour debutant Lisa Pigato bringing a first triumph since losing in the semi-finals of the Australian Open in February.

However, the 23-time grand slam champion was unable to repel a determined Siniakova as she slipped out at the last-16 stage.

"It was a fantastic match and I played so well, I'm so happy that I could finish like that," Siniakova said after recording a 7-6 (7-4) 6-2 result.

"It was a pleasure to share the court with her.

"Now I will have the pressure because I defeated a great player, but I will enjoy it. I'm happy that I can continue and I will try to play my best in the next match."

Having failed to convert a set point opportunity, Williams hit back after losing serve with a break of her own to force a tie-break in the opener.

But Siniakova forced her way into a 5-3 lead before sealing it with a service winner, then quickly seized control of proceedings in a second set which was far less competitive.

Third seed Coco Gauff came through two tie-breaks to see off Kaia Kanepi, the American teenager having let slip a 5-1 lead in the second set before eventually sealing a 7-6 (8-6) 7-6 (9-7) win.

Petra Martic had no such issues in her opening contest against Varvara Gracheva, the second seed easing through 6-4 6-2 after one hour and 21 minutes on court.

Roger Federer's extra work on the practice courts could not see him past Pablo Andujar as he lost at the Geneva Open in just his third match of the year.

ATP Tour great Federer did not feature after the Australian Open in 2020, instead recovering from knee surgery.

His comeback came in Doha in March, but defeat to Dan Evans after an opening victory over Nikoloz Basilashvili prompted the 20-time grand slam champion to withdraw from subsequent tournaments.

Federer instead refocused on practice yet was still cautious to forecast a return to his best standard ahead of playing this week's event in Switzerland.

"There are question marks around my level," he explained, and Tuesday's answers were underwhelming in front of a small home crowd.

Federer went down 6-4 4-6 6-4 to Andujar, despite leading by a break in the decider.

Andujar reeled off the final four games of the match to claim his first top-10 win since 2015 against David Ferrer in Barcelona.

For Federer, this was a rare failure on Swiss soil, a 32-match winning run ended by Andujar.

Juan Martin del Potro, way back in 2013 at the Swiss Indoors Basel, had been the most recent victor against Federer in his home country.

Andujar could now face Dominic Stephan Stricker in the last eight after the 18-year-old wildcard stunned Marin Cilic on his ATP Tour debut.

A 7-6 (7-5) 6-1 victory for Federer's young countryman set up a meeting with Marton Fucsovics, who beat qualifier Henri Laaksonen in straight sets, for the right to play Andujar.

Besides Federer, Fabio Fognini was the only seed involved on Tuesday but eased past Guido Pella 6-2 6-2.

Elsewhere, at the Lyon Open, French stars continued to fall, although fifth seed Gael Monfils at least came past lucky loser Thiago Seyboth Wild.

After all four Frenchman involved on Monday lost, Richard Gasquet was the only other home hopeful to advance 24 hours later – and he was playing compatriot Gregoire Barrere.

Jo-Wilfried Tsonga fell at the hand of Tommy Paul, while wildcard Benjamin Bonzi went down to Karen Khachanov.

There was an upset, meanwhile, as seventh seed Felix Auger-Aliassime was toppled in three sets by Lorenzo Musetti.

It proved to be a tough day for home players at the Lyon Open as Roger Federer found out who he will face first in the main draw in Geneva.

All four Frenchmen in action on Monday were knocked out in Lyon, including 2018 finalist Gilles Simon.

Aljaz Bedene knocked out the world number 68 in straight sets, two breaks of serve in each enough to secure a 6-2 6-3 triumph after one hour and 13 minutes on court.

Sebastian Korda overcame both Pierre-Hugues Herbert and the rain to progress to the second round, a 7-6 (7-5) 6-4 triumph wrapped up quickly following a delay.

Having been 5-4 ahead in the second set when play was halted, Korda clinched victory on his first match point upon the resumption, in the process snapping a run of four successive defeats on the ATP Tour.

Cameron Norrie will take on top seed Dominic Thiem next after his 7-5 6-3 win against Corentin Moutet, while Ugo Humbert let slip a one-set lead as he was beaten by Yoshihito Nishioka.

Meanwhile, at the Geneva Open, there was a maiden victory for French teenager Arthur Cazaux as he came out on top against compatriot Adrian Mannarino.

The 18-year-old held his nerve in a decider despite this being his first tour-level contest; Reilly Opelka or Pablo Cuevas will be next up in the event.

As for Federer, he will begin his campaign on Tuesday, the 39-year-old having played just two matches so far this year after undergoing two knee operations in 2020.

The Swiss superstar now knows he will be up against Pablo Andujar, who overcame Australia's Jordan Thompson in straight sets.

Tennys Sandgren saw off Salvatore Caruso 6-3 6-4, while Dominik Koepfer came through a tight tussle with Benoit Paire that spanned two hours and 39 minutes.

Serena Williams described Roger Federer as "a synopsis of greatness", but the 20-time grand slam champion urged caution ahead of his latest ATP Tour return.

Knee surgery kept Federer out of action for more than a year following the 2020 Australian Open, with the Swiss finally returning to the court in a competitive match in March.

A swift exit in Doha, in just his second match, prompted Federer to return to practice, not playing again until this week's Geneva Open.

His comeback will capture the attention of a fellow tennis legend, as Williams, herself ramping up French Open preparations in Parma, discussed her love for the ATP icon after a win on Monday.

"He's just a synopsis of greatness and class and amazing and really changed the game," Williams said.

"You see players playing like him, moving like him, doing his techniques. The guy is genius.

"I just feel like he is really the greatest player. Just look at him. You can't not like the guy, that's how I feel.

"His game is so fantastic. If I could only play like him!"

Federer is not entirely sure his game will be "so fantastic" when he steps out on the court against Pablo Andujar, though.

The lack of match practice means Federer has modest targets, rather than thinking about challenging great rivals Novak Djokovic and Rafael Nadal.

"I need to do my thing, I need to play 10 matches to give you a better answer [on my level]," he said.

"Of course there are question marks around my level right now. We will find out a little bit more tomorrow [Tuesday].

"In practice, things have been going well, so I'm happy there, and when you come back from an injury, you are in a different place to everybody else.

"The players are there, I'm here at the moment.

"I'm excited about the comeback; that's what my focus needs to be on and not trying to be the same level as Rafa and Novak right now."

And Federer suggested he might have to be even better than before to again be competitive.

"The generation of [Stefanos] Tsitsipas, [Alexander] Zverev, [Andrey] Rublev and [Daniil] Medvedev have all again gotten better naturally, because they have more experience," the 39-year-old said.

"Dominic [Thiem] won a slam in the meantime, Rafa and Novak are still where they are.

"So, you would think that the game has improved again. For me, that's going to be an extra challenge, extra hard to find that level.

"But one I knew from the get-go that would never be simple, regardless if I was going to be out for three months or now almost a year and a half."

Serena Williams had no problems in her opening match at the Emilia-Romagna Open, but sister Venus was unable to join her in the last 16.

Top seed Serena eased to a 6-3 6-2 triumph over teenage qualifier Lisa Pigato in the highlight of Monday's action in the clay-court tournament, wrapping up the result in 68 minutes.

Pigato, 17, was making her debut in the main draw of a professional event having come through qualifying in Parma.

She enjoyed early success against the legendary Williams, too, claiming a break of serve in the opening game, but the 23-time grand slam champion soon got to grips with the task at hand.

"The first game, she played really good and I needed to adjust to get back," Serena said afterwards. "It was a bit of both, figuring out her game as well."

Next up for the American, who accepted a wildcard into the event after an early exit at the Internazionali BNL d'Italia in Rome last week, will be Katerina Siniakova, a 6-1 6-3 winner over Clara Tauson.

Venus, however, failed to make it beyond her opening outing, losing out to Anna Karolina Schmiedlova despite taking the opening set.

The Slovakian made it four wins in five meetings against the seven-time major champion, eventually prevailing 5-7 6-2 6-2 after two hours and 39 minutes on court.

Elsewhere, Sloane Stephens defeated fellow American Caty McNally in two sets, while seventh seed Sara Sorribes Tormo overcame Bernarda Pera 6-4 6-2.

There was also a win in straight sets for eighth seed Caroline Garcia, who got the better of Paula Ormaechea in a contest that saw both players serve impressively.

Australian Open chief Craig Tiley is confident tennis' season-opening grand slam will take place in Melbourne next year despite suggestions the tournament may be played overseas.

The federal government in Australia is sticking to predictions that international borders will be closed until at least the middle of 2022, leaving the feasibility of hosting the Australian Open shrouded in doubt.

It has even been suggested in a recent ABC report that alternative destinations are being explored, with Dubai and Doha said to be being considered as potential venues.

But Tiley, speaking to RSN, believes the timeline on opening up borders will be altered in time for the tournament, which traditionally takes place in January.

"We're talking about two weeks of quarantine and the borders remaining closed until the middle of next year, but I'm an optimist," Tiley said.

"I think that's going to be too long. I think it's going to be brought forward because we're going to get on top of it with the vaccines and how we manage the virus.

"If we don't, we're going to be extremely challenged."

This year's tournament was blighted by logistical issues, with several players forced into quarantine after being exposed to coronavirus on chartered flights into Australia, while just days before the event was due to begin more than 500 players and officials were made to isolate after a worker at an Australian Open quarantine hotel tested positive for COVID-19.

Novak Djokovic, the men's singles champion in Melbourne, was chief among those critical of the conditions players had to endure.

"The players have been travelling around the world in a bubble so there's no place in the world anymore where there's quarantine requirements for them and so they're used to certain conditions," Tiley added.

"We [in Australia] still have this 14-day requirement but of course the positive is we don't have any community transmission of the virus."

Rafael Nadal believes his ability to handle pressure was key to a record-extending 10th Internazionali d'Italia win on Sunday.

Nadal overcame Novak Djokovic 7-5 1-6 6-3 to seal his first Masters 1000 triumph of the year, while improving to 4-2 in the finals he has played against the Serbian at the Foro Italico venue in Rome.

Victory also gave Nadal a 36th Masters 1000 crown, moving him level with Djokovic's all-time record since the series was established in 1990.

The 34-year-old king of clay-court tennis was delighted to get his hands on the trophy for a 10th time and said there has been no let-up in his motivation to succeed.

"It's amazing to have the trophy with me again, one more time here in Rome," Nadal said.

"I really wanted this 10th here in Rome. After achieving 10 at Roland Garros, 10 in Monte Carlo, 10 in Barcelona, I really wanted this one. It's a super important tournament for me.

"I went through a lot of things during the week. Some positive, some great moments, some lucky moments, suffering moments. At the end I think I played a very solid week of tennis. It's the right moment to win an important title."

Nadal added, quoted on the ATP website: "I don't put extra pressure on myself at all. I want to win every day and every tournament that I play. But the passion and the motivation to try is always the same. I know how to handle the pressure."

Nadal plans to rest for a few days before making minor tweaks to his game ahead of a tilt at a record-breaking 21st grand slam title at the French Open, which starts on May 30.

"I'll take a couple of days off and then start working," Nadal added. "I think I can work on a couple of things that I can do a little bit better. I think I have been improving this week, but I need to keep going with those improvements, because when you improve, you're able to do it every day for a longer time.

"I just need to keep going. I know what I need to work on over the next couple of weeks, and I'm going to do it. Work, relax mentally, and work the right way."

Djokovic spent almost five hours on court on Saturday in his rain-delayed quarter-final against Stefanos Tsitsipas and subsequent semi-final triumph over Lorenzo Sonego.

However, he insisted fatigue was not behind his defeat.

"Not at all, I did not feel any fatigue," Djokovic said. "He managed to break my serve and played better, that's it.

"Until the last shot it was quite close. I had my shot to win it, but it wasn't meant to be. I didn't feel fatigue. Actually, I was very happy with the way I felt on the court. I could have gone for another few hours.

"I could have easily gone out of this tournament in the quarters. I'm very pleased with my fighting spirit. The level of tennis was higher and higher, actually.

"Yesterday I played great. Today I thought I also played at a high level. Unfortunately the decisive moments in the first and third sets just went his way. It was a bit unfortunate."

Rafael Nadal sealed a record-extending 10th Rome Masters title with a 7-5 1-6 6-3 win over Novak Djokovic at the Internazionali d'Italia.

It marked a first Masters 1000 triumph of the year for Nadal, who improved to 4-2 in the finals he has played against Djokovic at the Foro Italico venue.

Victory also secured Nadal a 36th Masters 1000 crown, moving him level with Djokovic's all-time record since the series was established in 1990.

Djokovic spent almost five hours on court on Saturday in his rain-delayed quarter-final against Stefanos Tsitsipas and subsequent semi-final triumph over Lorenzo Sonego, but he showed no signs of fatigue in the opening stages in Rome.

The Serbian broke in Nadal's first service game to go 2-0 up, although Spaniard Nadal hit back in the next game before levelling matters at 2-2.

Nadal then broke again, taking advantage of an unconvincing service game from Djokovic at 5-5 on his way to sealing the opening set in one hour and 15 minutes.

Djokovic survived a break point at 1-1 in the second set, before breaking Nadal in the next game to move 3-1 ahead.

The Serbian reeled off five games in a row in all, setting up set point with his fifth ace of the match. He forced a backhand error from Nadal to take the second set in 43 minutes.

Nadal saved two break points at 2-2 in the final set, which provided him with the confidence to break to love and open up a 4-2 lead.

He sealed victory in two hours and 50 minutes, converting his second championship point when Djokovic sent a backhand long.

Amanda Anisimova raced into the second round at the Emilia-Romagna Open, where she could now face wildcard Venus Williams.

Venus and Serena Williams have each entered the event in Parma to prepare for the French Open, although Bianca Andreescu has been forced to withdraw.

Both Williams sisters have qualifiers in their openers at the start of next week, but Venus – absent in Rome with a knee injury – already knows tricky teenager Anisimova lies in wait beyond that.

Anisimova was a force in the 2019 clay-court season, then just 17 but winning the Copa Colsanitas – still her sole WTA Tour title – before beating Simona Halep at Roland Garros to reach the French Open semi-finals.

A return to the red dirt in 2020 yielded only three wins, though, two of them at the major before Halep gained revenge, and this season has been similarly testing.

But fifth seed Anisimova eased through her opener on Sunday, beating home hopeful Jasmine Paolini 6-2 6-1 in just shy of an hour.

Daria Kasatkina, the number four seed, could also face a grand slam winner in round two, with Sloane Stephens – the 2017 US Open champion – potentially her prize after seeing off Hsieh Su-wei in straight sets.

Qiang Wang had to come through three sets but ensured there were no upsets on day one as she defeated Misaki Doi 6-2 5-7 6-1.

Iga Swiatek sealed a place in the world's top 10 in style on Sunday, thrashing Karolina Pliskova without dropping a game in a stunning Internazionali BNL d'Italia final.

The reigning French Open champion was in ruthless form in the showpiece match, dismantling the ninth seed 6-0 6-0 in just 46 minutes on the Rome clay.

Pliskova simply had no answer as she suffered the first double-bagel loss in a WTA final since 2016, back when Anastasija Sevastova was on the receiving end against Simona Halep in Bucharest.

Swiatek showed no mercy to her opponent, losing just 13 points during a lopsided contest. She did face two break points in the third game of the second set, but quickly recovered to hold serve.

The victory secures a third career title for the teenager from Poland, who also triumphed in Adelaide earlier this year.

"I'm really really happy. I'm kind of overwhelmed because at the beginning of this tournament I wouldn't even dream of winning," Swiatek said in her on-court interview.

"It was super tough. We had to fight a lot of stuff.

"Obviously Karolina had a great run here and in previous years she's showing she's a really consistent player."

The new champion had needed to play twice on Saturday due to rain delays during the tournament, overcoming both Elina Svitolina and Coco Gauff in straight sets to progress to the final.

Those results came after a last-16 scare against Barbora Krejcikova, Swiatek twice having to save match points before eventually prevailing in a deciding set.

"I'm really happy we've been able to play with fans because you gave me a lot," Swiatek, who is certain to be inside the top 10 when the updated rankings are released on Monday, said.

"Everything happened during this week. I've been playing two matches in a day, saving set points, saving match points, and you [the crowd] helped me a lot because it's tough.

"I want to thank people that are not here, my family and my cat, I am always thinking about her."

Andy Murray will miss the French Open to give himself the best possible chance of being match-ready for Queen's Club and Wimbledon.

The decision was reached on Saturday – Murray's 34th birthday – as the three-time grand slam winner attempts to banish the lingering effects of a recent groin injury.

Murray will work on his fitness and his game in London over the coming weeks, preparing for an emotional return to action in front of a British crowd.

The grass-court season was cancelled in the UK last year because of the coronavirus pandemic. Troubled by fitness issues, Murray has not played singles at Wimbledon since 2017, although in 2019 he entered men's doubles and mixed doubles, partnering Pierre-Hugues Herbert and Serena Williams in those events.

Murray travelled to Rome last week, initially with the sole purpose of practising against leading tour players at the Internazionali d'Italia, and he had a session with long-time rival and current world number one Novak Djokovic, playing a set.

The Scot and fellow Briton Liam Broady were then accepted into the doubles, winning a round before bowing out.

It was expected that Murray would play singles either in Geneva or Lyon in the coming week; however, word emerged that he had abandoned that plan as he reportedly turned down a wildcard to the Swiss tournament.

Now it can be confirmed that Murray will not head to Paris for the French Open either, choosing to focus his energy on the grass-court season.

Although Murray achieved success on clay at the height of his career, winning Masters 1000 titles in Madrid and Rome and reaching the 2016 French Open final, he has greater pedigree on grass, as his five Queen's Club titles and two Wimbledon triumphs have demonstrated.

Skipping the remainder of the clay-court season means Murray can focus on getting himself in the best possible shape for those events in London.

Murray underwent hip resurfacing surgery in January 2019 in a bid to give himself more years on tour. He lost in the second round of the US Open last year before being thrashed by Stan Wawrinka in round one of the French Open.

He was disappointed to miss the Australian Open at the beginning of this year after testing positive for COVID-19.

French Open champion Iga Swiatek beat Elina Svitolina and Coco Gauff on a hectic Saturday to set up a clash with Karolina Pliskova in the Internazionali d'Italia final.

The Polish teenager began her day with a 6-2 7-5 morning victory over fifth seed Svitolina, twice a winner of this tournament in Rome.

It was a match that was carried over from Friday's schedule after rain interrupted play, and Swiatek delivered a convincing performance.

That set up the semi-final clash with Gauff, the 17-year-old American who was competing at this stage of a WTA 1000 event for the first time, having been gifted her last-four place when Ash Barty abandoned their quarter-final match due to injury on Friday.

There was no sign of fatigue from Swiatek as the 19-year-old powered to a 7-6 (7-3) 6-3 victory in a battle of the leading teenage stars of the women's game, who faced each for the first time in what could be a long rivalry.

Swiatek said: "I felt really good today. It's a big difference between my previous matches and today. I was able to beat Elina, so that shows that my game is here, I'm ready for anyone. It gave me a real confidence boost."

Quoted on the WTA website, the 15th seed added: "It's always hard to play against a young superstar, especially when I'm not used to that because I was always the youngest one.

"I just tried to have a high level of energy, even though it was my second match."

Between her two matches, Swiatek would have learned it was Pliskova waiting in the final, as the Czech ninth seed defeated Croatian Petra Martic 6-1 3-6 6-2 to keep up her remarkable record in the Italian capital.

Pliskova won the Rome title in 2019 and was runner-up to Simona Halep last year, but the 29-year-old former world number one has not been to a final since this event unusually took place in September of last year, having been delayed due to the pandemic.

Swiatek won as a major outsider at Roland Garros in October, defying her world ranking which at the time was a lowly 54th, and will face, in Pliskova, a player who has yet to win a grand slam title, a glaring absence amid an otherwise stellar career.

Against Gauff, Swiatek made 25 winners and just 16 unforced errors, a healthy ratio, and took three of her four break-point opportunities.

She sealed victory on a third match point, a big backhand forcing a stretching Gauff to chip beyond the baseline.

Gauff hit seven aces but also five double faults and had 33 winners and 32 unforced errors in the contest.