World number three Roger Federer is playing his first tournament on clay for three years as he prepares for the French Open.
India caused a stir in Zagreb where veteran duo Leander Paes and Rohan Bopanna edged Mate Pavic and Franko Skugor in Saturday's doubles to keep alive the tie but Marin Cilic quickly doused Indian hopes with a 6-0, 6-1 win over Sumit Nagal.
Rafael Nadal reached the final of the Swiss Indoor tournament when he beat Frenchman Richard Gasquet 6-4, 7-6(7) on Saturday, a result that was good news for fellow Spaniard David Ferrer.
Former national champion Alok Kumar also stayed on course for a place in the knock-out round atthe World Snooker championships.
Kei Nishikori was crowned Barcelona Open champion for the second consecutive year after a hard-fought 6-4, 6-4 victory over surprise Spanish finalist Pablo Andujar on Sunday.
Japanese trailblazer Kei Nishikori had a thrilling run at the US Open, but could not summon a finishing kick as he hit the wall against big-hitting Marin Cilic in Monday's final at Flushing Meadows.
Jack Sock celebrated a pair of firsts on Friday by powering past fourth seed Kei Nishikori 6-3, 2-6, 6-2 to book a date with Roger Federer in the semi-finals of the BNP Paribas Open in Indian Wells, California.
Defending champion Roger Federer became the second high-profile casualty at the Madrid Open when he was beaten 6-4, 1-6, 6-2 by Japanese 14th seed Kei Nishikori in the third round.
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.
"It's been an amazing year so far," said the 25-year-old Nishikori, who will move up to fourth from fifth in the world rankings. "I've had some good Grand Slams, too."
Japan's Kei Nishikori will meet Spain's Feliciano Lopez in the final of the US National Indoor Tennis Championships after besting Australian Marinko Matosevic in the semi-finals in Memphis on Saturday.
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.
Rafa Nadal overcame another hurdle on his way to a possible eighth Barcelona Open title in nine years when he recovered from a poor start to beat Benoit Paire 7-6, 6-2 in their delayed third-round match on Friday.
World No 1 Novak Djokovic will meet second-ranked Andy Murray in a blockbuster final at the Madrid Open after beating Kei Nishikori 6-3, 7-6 (4) on Saturday.
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.
Andy Murray has thrown his unequivocal support behind the crackdown on time-wasting in tennis because he believes it will turn the sport into even more of a survival of the fittest.
Osaka became the first Japanese tennis player to win the Australian Open and the first Asian player to claim the world number one ranking.
The 35-year-old's first match back in action last week at the Stuttgart Open was a flop when he suffered a shock loss to German veteran Tommy Haas, ranked 302 at the time, despite leading for a set and a half.
Japan's Kei Nishikori wrapped up a straight sets win over Feliciano Lopez to win the Memphis International on Sunday.
Top-seeded Marin Cilic saved three match points to narrowly avoid becoming the latest upset at the Memphis International tournament on Thursday.
World number one Novak Djokovic continued his dominance of Kei Nishikori with a 6-3, 7-5 victory in the final of the Rogers Cup in Toronto on Sunday.
Fourth seed David Ferrer used all of his cunning and exploited Kei Nishikori's nagging knee injury to advance to the quarter-finals of the Australian Open with a 6-2, 6-1, 6-4 victory on Sunday.
Milos Raonic has withdrawn from the US Open due to a persistent wrist injury but plans to return to the Tour later in the year, the Canadian said on late on Wednesday.
Images from Day Nine of the French Open at Roland Garros 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.
Defending doubles gold medallists Roger Federer and Stanislas Wawrinka were stretched by Japanese pairing Kei Nishikoir and Go Saeda on Monday, with the Swiss only winning the thrilling match 6-7, 6-4, 6-4 as darkness fell.
Kei Nishikori stunned big-serving Milos Raonic 7-6, 3-6, 6-0 with an electrifying display of attacking tennis to become the host country's first Japan Open champion on Sunday.
Rafael Nadal struggled to finish off Fabio Fognini at the Barcelona Open on Friday but eventually quelled one of his most troublesome opponents 6-2, 7-6(1) to reach the semi-finals.
Defending champion Andy Murray blew out the cobwebs with a 7-6, 6-4 win over towering Croat Ivo Karlovic on Tuesday in his first match since winning last month's U.S. Open.
Images from Day 1 of the 2020 French Open, in Paris, on Sunday.
Norma Godinho has just about caught her breath after all the action at SW19 on Super Sunday. Here are Norma's memorable moments from this year's Wimbledon.
World No 1s Andy Murray and Angelique Kerber have been named top seeds for the first major of the season, Australian Open, which will commences on January 16.
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.
Images from Day 9 at the French Open.
Images from the men's singles quarter-finals at Wimbledon on Wednesday.
Andy Murray's runstellar stretch included his second Wimbledon title, second Olympic gold medal and wins at Queen's Club and Rome.
World No 55 Haase improved to a 2-2 career record against Zverev, including victories in their last two meetings.
The motto 'if at first you don't succeed' might have been coined for Japan's Yuichi Sugita, who after a battling French Open main draw debut on Sunday finds himself close to reaching the second round of a Grand Slam for the first time.
The Wimbledon Championship runner-up is expected to be a top draw at the ATP 250 event to be played at the Mhalunge Balewadi Stadium in Pune.