Croatian ninth seed Marin Cilic reached the Wimbledon quarter-finals for the third year running after Kei Nishikori quit with a rib injury midway through their fourth round match on Monday.
Rafael Nadal moved into the Miami Open semi-finals with a straight sets win over American Jack Sock on Wednesday.
Marin Cilic completed a sensational set of semi-final shockers by upsetting 17-times Grand Slam winner Roger Federer 6-3, 6-4, 6-4 on Saturday to reach the final of the US Open. Croatian 14th seed Cilic's opponent in Monday's final will be 10th seed Kei Nishikori of Japan, who sent world number one Novak Djokovic out of Flushing Meadows with a stunning 6-4, 1-6, 7-6(4), 6-3 victory.
World No 1 Novak Djokovicremained on course for his fifth title of the season after defeating 11th seed Milos Raonic in the quarter-finals of the Madrid Masters on Saturday.
Swiss second seed Stan Wawrinka advanced into the semi-finals at the Rogers Cup with a comprehensive 6-1, 6-3 victory over big-serving South African Kevin Anderson at the Aviva Centre in Toronto on Friday.
Maria Sharapova joined Serena Williams in making an early exit from the Australian Open on Monday but defending champion Victoria Azarenka swept into the quarter-finals with an 18th straight victory at Melbourne Park.
Former world number one Roger Federer retained his place at the top of the list of the world's highest paid tennis players for a 17th year despite not playing a match for nearly 14 months.
In his pre-tournament news conference in Toronto on Sunday, Nadal said a recurring foot issue he has been dealing with since 2005 returned at the French Open, where he fell to eventual champion Djokovic in the semi-finals.
Images from Day 6 of the 2021 US Open in New York on Saturday.
Nadal thrashes Nishikori; Federer downs Wawrinka
Novak Djokovic eased into the last four with a commanding performance over Japan's Kei Nishikori but world number two Daniil Medvedev bowed out of the men's singles at the Tokyo Olympics.
Japan's Nishikori was the first man representing an Asian country to break through to a Grand Slam final at the 2014 tournament before Marin Cilic stopped him in the title match.
Rafael Nadal will skip the Miami Open that begins later this month in a bid to recover from a back injury in time for the clay court swing
18-year-old Carlos Alcaraz earned his first ATP Masters 1000 crown
Having dug in early on to stay with Federer, Nishikori ended up running away with the match to inflict a first straight sets defeat in the ATP Finals round-robin stages on the 20-time Grand Slam champion.
18-year-old Carlos Alcaraz entered the top 10 at the same age, on the same date and after a triumph in the same tournament as compatriot and 21-times major winner Rafael Nadal did in 2005.
Top seed John Isner narrowly avoided a second straight first round exit as the big serving American edged past Canadian Jessie Levine 7-6, 5-7, 6-4 at the Delray Beach International on Tuesday.
American tennis player Taylor Fritz and his doubles partner, Tik Tok personality Addison Rae, won the virtual Stay At Home Slam on Sunday as real-life tennis remains on hold because of the coronavirus crisis. The likes of the Williams sisters, Japanese stars Naomi Osaka and Kei Nishikori and the recently retired Maria Sharapova competed as their favourite characters from the world of Nintendo to raise money for charity.
Images from Day 4 of the 2021 French Open in Paris on Wednesday.
Rafael Nadal clinched a record-extending 11th Monte Carlo title as he geared up for his French Open campaign with a 6-3, 6-2 victory over Japan's Kei Nishikori in the final on Sunday.
The eight seeded South African fought back after losing the first two sets to defeat the Swiss ace 2-6, 6-7(5), 7-5, 6-4, 13-11.
Roger Federer rediscovered his verve in the nick of time to outclass Austrian Dominic Thiem 6-2, 6-3, on Tuesday, and maintain his hopes of reaching the last four at the ATP Finals.
In the women's draw, Angelique Kerber was knocked out in a 6-3, 6-1 defeat to Czech Katerina Siniakova while Coco Gauf won her first ever match on clay.
Images from Day 1 of the 2020 French Open, in Paris, on Sunday.
Rafael Nadal maintained his ominous claycourt form by seizing back the Barcelona Open title from Kei Nishikori with a 6-4, 7-5 victory on Sunday, matching Guillermo Vilas's record title haul on the surface.
Tennis matches at the Ariake Tennis Park will begin from 3pm local time (0600 GMT) from Thursday, governing body International Tennis Federation said after requests from players who had struggled in the stifling weather.
Defending champion Rafael Nadal remains on course for an 11th Monte Carlo Masters title after beating Bulgaria's Grigor Dimitrov 6-4, 6-1 in the semi-finals on Saturday.
Rafael Nadal's decision to end his season early means Cilic is actually holding the last berth for the eight-man showdown at London's O2 Arena.
Argentina's Juan Martin del Potro won a semi-final thriller against Spain's Rafa Nadal on Saturday, outgunning the Spaniard 5-7, 6-4, 7-6(5) in a nervy final set tie-breaker to advance to the Olympic singles final.
Defending US Open champion Rafael Nadal retired from his semi-final against Argentine third seed Juan Martin del Potro on Friday with right knee issues. The world number one was trailing 7-6(3), 6-2 when he decided to call it a night.
Images from Day 1 at the Australian Open.
Andy Murray put down an early warning for the Davis Cup final when he dismantled David Goffin 6-1, 6-0 in awe-inspiring fashion to reach the quarter-finals of the Paris Masters on Thursday.
Champion Novak Djokovic did not bother with a practice hit before his showdown with Kei Nishikori and his "less is more" approach paid off with an easy 6-3, 6-2, 6-4 win on Tuesday to set up a blockbuster Australian Open semi-final with Roger Federer.
The 30-year-old Serb had been scheduled to start the new season at an exhibition match in Abu Dhabi on Friday when an elbow injury flared up.
Novak Djokovic sat out last year's U.S. Open to rest an elbow injury that eventually required surgery, but that pain and frustration felt like a distant memory on Friday when the Serb completed his march to the New York final with authority.
Japanese teenager Kei Nishikori beat Slovak Dominik Hrbaty 6-1, 1-6, 7-5 to reach the quarter-finals at the Stockholm Open on Thursday. Nishikori, 18, broke the former world number 12 to lead 6-5 in the decider before serving out for victory. He next faces second seed Mario Ancic of Croatia, who beat Belgian Steve Darcis 7-6, 6-4.
The Italian is the youngest winner on the men's tour since Japan's Kei Nishikori won the Delray Beach Open at the age of 18 in 2008.
IMAGES from Day 7 at Wimbledon on Monday
Kei Nishikori has shrugged off the pressure of being Japan's highest-seeded player at Wimbledon in the Open era and believes he is getting closer to the levels of the world's top players.