World number one Novak Djokovic said his win over Rafa Nadal in Friday's epic French Open semi-final was one of the top three matches he had played and he would remember it forever.
A round-up of Friday's action in the Davis Cup.
Murray, who suffered an elbow injury in March and made his return from a five-week layoff on Wednesday after a first-round bye, won the opening set in 48 minutes before losing concentration.
Greek third seed Stefanos Tsitsipas battled back from a set down to beat Serbia's Filip Krajinovic 3-6, 6-4, 6-4 in the quarter-finals of the Swiss Indoor championship on Friday. The win took Tsitsipas into his 10th semi-final of the season where he will face top seed Roger Federer, who was handed a walkover after Swiss compatriot Stan Wawrinka withdrew before their quarter-final with a back issue.
Fourteen-time Grand Slam champion Rafael Nadal crashed out of the Brisbane International after going down at the hands of top-seed Milos Raonic of Canada in their quarter-final clash here on Friday. World number three Raonic recorded only his second victory over Nadal in eight meetings with a 4-6, 6-3, 6-4 win in the last-eight contest that lasted two hours and 21 minutes.
Gauff cruises past Zidansek to reach French Open third round
Defending champion Angelique Kerber battled her nerves and blew a match point in the second set before finally overcoming Lesia Tsurenko 6-2, 5-7, 6-2 to reach the second round.
A summary of Friday's tennis action from around the world.
'During the grass court season, I unfortunately experienced a setback with my knee, and have accepted that I must withdraw from the Tokyo Olympic Games.'
The 32-year-old world number 18 still had a remote chance of qualifying for the season-ending ATP World Tour Finals for an eighth time.
German seventh seed Alexander Zverev recovered from a slow start to beat former champion Stan Wawrinka 1-6, 6-3, 6-4, 6-2 in the Australian Open on Wednesday to reach his first career Grand Slam semi-final. Swiss Wawrinka, who won the first of his three Grand Slams at Melbourne Park in 2014, broke Zverev twice early in the opening set to breeze through the opening set but the 22-year-old German came roaring back into the contest.
IMAGES from the matches played on Day 4 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Thursday
Serbian tennis ace Novak Djokovic has continued his domination on an unchanged top 10 in the latest men's tennis rankings issued by the ATP on Monday.
With 1,500 points available for an undefeated champion next week, the tournament could produce a thrilling climax with Murray and Djokovic, who have never met at the O2, facing off in the final for the year-end number one ranking.
Danish teenager Holger Rune fought back from a set down to beat hot favourite Novak Djokovic 3-6, 6-3, 7-5 and win his first Masters title in Paris on Sunday.
Novak Djokovic and Serena Williams were named men's and women's world champions for 2015 by the International Tennis Federation on Tuesday. The Serb ended the year as men's world number one for the fourth time after taking three majors - the Australian, Wimbledon and US Open, as well as finishing runner-up to Stan Wawrinka in the French. Williams also narrowly missed a calendar-year grand slam, winning the Australian, French and Wimbledon and reaching semi-final at US Open.
Britain's world number two Andy Murray pulled out of the US Open on Saturday, citing a hip injury.
Novak Djokovic and Serena Williams were named men's and women's world champions for 2015 by the International Tennis Federation.
Rafael Nadal has withdrawn from next week's season-opening exhibition event in Abu Dhabi due to ongoing fitness problems, the world number one said.
Alexander Zverev continued to rebuild his confidence on clay with a straight sets win over Spain's Roberto Bautista Agut in the Monte Carlo Masters second round.
Third seed and Australian Open champion Wawrinka recovered from the loss of the opening set to claim his maiden Masters title on the Monte Carlo clay just six weeks before the start of the May 25-June 8 grand slam tournament in Paris.
Novak Djokovic extended his winning streak at the China Open to 27 matches with a 6-2, 6-2 demolition over big-serving American John Isner on Friday.
IMAGES from Day 4 of the Wimbledon Championships, at the All England Lawn Tennis and Croquet Club, London, on Thursday.
Top seed Stanislas Wawrinka dismantled the challenge of a rampaging Aljaz Bedene with ease as the Swiss World No. 4 retained the Chennai Open title with a straight sets win in the summit clash.
World No 1 Novak Djokovic and Serena Williams have been named as top seeds for the US Open, which will commence from August 29.
American Serena Williams has also said that the dropouts will not take the shine off a potential record-equalling 24th Grand Slam title for her.
World No 1 Novak Djokovic, on Wednesday, became the first player to earn more than US$100 million in prize money after progressing through to the quarter-finals of the French Open in Paris.
Australian Nick Kyrgios was involved in a fresh dispute after being accused of swearing at the BNP Paribas Open in California.
'The more you lose something, the more you want to win it, the more you want to gain it and take it.'
The 17-times Grand Slam champion, looking to give Switzerland their first Davis Cup title, lost his first singles rubber against Gael Monfils on Friday five days after withdrawing from the World Tour final against Novak Djokovic.
Stefanos Tsitsipas enjoyed an incident-free path into the third round of the French Open with a win over Roberto Carballes Baena.
French Open champion Stan Wawrinka feels completely comfortable about his failure to break into the unofficial big four of men's tennis despite winning two grand slam titles.
Bikash Mohapatra traces the rise of the Swiss, first man to win multiple Slams in the 'Big Four' era.
Djokovic said he was '50-50' about competing at the Tokyo Olympics
For good reason a two-week Grand Slam can be described as a 'last man standing' marathon of mental and physical endurance, which makes Roger Federer's haul of 19 all the more incredible.
In fact, barring 2014 when Stan Wawrinka won the title, no player apart from the quartet has even been involved in the men's final at Melbourne Park since 2008.
British tennis maestro Andy Murray has reclaimed his second spot from Roger Federer in the latest ATP rankings after winning his maiden Italian Open title.
French Open champion Rafael Nadal has withdrawn from next week's Aegon Championships at The Queen's Club after advice from his doctors to rest, organisers announced on Tuesday.
Red-hot Rafael Nadal faces Delbonis, says majors tally not a focus
Nadal, who is the clear tournament favourite and looks to be in the form of his life on clay this season, raced into a 3-0 lead before Spanish compatriot Almagro felt his left knee with less than half an hour played.