Images from all the action on Day 3 at the Australian Open in Melbourne on Wednesday
Juan Del Potro's tennis career looked over after a second wrist injury sidelined him for the best part of two years in 2014 but the Argentine enjoyed one of his greatest moments when he led his nation to their maiden Davis Cup title.
Defending US Open champion Rafael Nadal and twice winner Novak Djokovic are one victory away from renewing their rivalry in the final with both expected to get through their semis on Friday.
IMAGES from the US Open matches played on Day 1 at the Flushing Meadows in New York 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.
Earlier in the day, Croatia's Borna Coric said he has tested positive for coronavirus. He became the second player to test positive for COVID-19 after Bulgaria's Grigor Dimitrov.
IMAGES from the French Open matches played on Thursday
US Open champions Marin Cilic and Serena Williams kicked off their China Open campaigns with straight sets victories against battling underdogs on Monday, but Rafael Nadal suffered defeat in a rare doubles outing on his return from injury.
IMAGES from Day 9 of the French Open at Roland Garros in Paris on Monday.
Sixth seed Nick Kyrgios battered Gael Monfils 6-4 6-4 and David Goffin outlasted Marin Cilic 7-5, 6-4 on Saturday to advance to the Japan Open final in Tokyo.
Fourth seed Andy Murray erased memories of early losses at Indian Wells by storming into the BNP Paribas Open third round with a ruthless 6-1, 6-3 victory over Canadian Vasek Pospisil on Saturday.
Novak Djokovic began his bid to hold on to his number one ranking with an easy win over Gilles Muller in the Paris Masters second round while Andy Murray struggled through and Stan Wawrinka faltered on Wednesday.
The tournaments involve eight players each, divided into two pools of four on a round-robin basis. Sets have been slashed to best-of-seven games.
Teeanger Borna Coric completed an unlikely comeback for Croatia as the small Balkan nation beat the United States 3-2 in a Davis Cup quarter-final in Oregon on Sunday.
World number one Naomi Osaka lost in three sets to unseeded Swiss Belinda Bencic in the Madrid Open quarter-finals on Thursday as Simona Halep, Sloane Stephens and Kiki Bertens completed the final four line-up.
A furious Djokovic went on to smash his racket three times on the court and was met with a chorus of boos from the spectators.
Men's second seed Rafael Nadal starts against Israel's Dudi Sela while three-time champion Novak Djokovic faces American Tennys Sandgren.
A look at Roger Federer's worst five Grand Slam losses.
Mahesh Bhupathi was on Friday accused of non-payment of dues by the production company that was involved in the broadcast of his star-studded league International Premier Tennis League (IPTL) but the Indian tennis ace said he is not responsible for the situation.
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.
IMAGES from the matches played on Day 4 of the Wimbledon Lawn Tennis Championships at All England Lawn Tennis and Croquet Club on Thursday
A season that produced the biggest shake-up in men's tennis for more than a decade draws to a close next week with three ATP World Tour Finals debutants striving to sign off breakthrough years with a large exclamation mark.
Former world number one Djokovic saved four match points but cracked under his opponent's tremendous pressure on the fifth as Goffin set up a last-four meeting with either clay court king Rafael Nadal or Argentine Diego Schwartzman.
Sharapova was broken in the first game but fought back to draw level before going on to take the first set with a hold to love.
Change might be afoot though, according to American great John McEnroe
IMAGES from Day 6 of the matches played at the US Open at Flushing Meadows on Saturday.
Cilic marches past Querrey into Queen's semis
Six-time champion Novak Djokovic's hopes of turning around his season at the Miami Open ended in the second round when he was defeated 6-3, 6-4 by Frenchman Benoit Paire.
In a bold decision, Underdogs India have preferred Ramkumar Ramanathan over No. 1 singles player Sumit Nagal for their Davis Cup qualifier against top seeds Croatia, beginning in Zagreb on Friday.
Bora Gojo and Marin Cilic gave Croatia a 2-0 lead over India, winning the opening singles, in their Davis Cup qualifier in Zagreb on Friday. Gojo, ranked 277th, put the hosts ahead with a come-from-behind 3-6, 6-4, 6-2 victory over world No. 132 Prajnesh Gunneswaran while world No. 37 Cilic was taken to two tie-breakers before prevailing over 182-ranked Ramkumar Ramanathan 7-6(8), 7-6(8).
If Stanislas Wawrinka's hot streak extends another four days, the Swiss might be unstoppable in his quest for a second French Open title, three-time former champion Mats Wilander said.
Images from Day 5 of the 2021 French Open, in Paris, on Thursday.
IMAGES from matches on Day 9 at the French Open at Roland Garros
John Isner pushed on towards a Tour finals spot on Friday when he made it through to the semi-finals of the Paris Masters with a 6-4, 6-7(5), 6-4 win over Argentine Juan Martin Del Potro as the tournament was hit by the withdrawal of Rafael Nadal.
The fifth-seeded Austrian, who saved two match points, will face Novak Djokovic on Saturday after the world number one's opponent Marin Cilic withdrew with food poisoning.
Greek tyro Stefanos Tsitsipas' dream run at the Rogers Cup continued on Friday as the teenager toppled defending champion Alexander Zverev 3-6, 7-6(11), 6-4 to reach the semi-finals in Toronto.
His Queen's run, plus a quarter-final at the French Open suggest Novaj Djokovic, who will climb back into the world's top 20 on Monday, is ready for a lengthy run at Wimbledon.
World champion Marc Marquez underlined his dominance of MotoGP when he swept to a record-equalling 12th pole position of the season on a good day for Spain at the Australian Grand Prix on Saturday.
The 38-year-old, who has lost six games so far in the tournament, dispatched his hapless opponent in only 62 minutes winning the second-round match 6-0, 6-3.
Nicolas Mahut and Pierre-Hugues Herbert made sure of that with a gripping doubles win that keeps France's hopes against Croatia alive in the last final to be staged in the event's traditional format.