The event comes at a time when tennis is facing criticism over its relentless tour schedule.
Andy Murray crushed Stan Wawrinka 6-4, 6-2 to win his group at the ATP World Tour Finals on Friday and stay on course for a season-ending climax with Novak Djokovic.
Mahesh Bhupathi and Mark Knowles enhanced their semi-final chances at the ATP World Tour finals after edging past Mariusz Fyrstenberg and Marcin Matkowski in a tough group B encounter in London on Tuesday.
Novak Djokovic said his ailing father's struggle with serious illness had inspired him to beat Roger Federer in a thrilling climax to the ATP World Tour Finals on Monday.
World number one Novak Djokovic and Andy Murray reached the last four at the ATP World Tour Finals on Friday after slicing through the various permutations of their round-robin group with matching wins at the O2 Arena. A day that began with all four Group A players in contention for the top two spots ended without the need for calculators as Djokovic beat Czech Tomas Berdych 6-2, 7-6 and Murray later overcame Frenchman Jo-Wilfried Tsonga by the same score.
Rohan Bopanna and Florin Mergea finished second in Ashe/Smith Group after losing to the Italian pair of Fabio Fognini and Simone Bolleli in their last group match in the ATP World Tour Finals , at the O2 Arena, in London, on Thursday.
Spain's David Ferrer stunned World No. 1 Novak Djokovic to reach the ATP World Tour semi-finals on Wednesday, outplaying the Serb 6-3, 6-1 at the O2 Arena.
Roger Federer became the first player to win the ATP World Tour finals six times when he beat France's Jo-Wilfried Tsonga 6-3, 6-7, 6-3 in the final at the O2 on Sunday.
Third seeds Leander Paes and Radek Stepanek qualified for the semi-finals of the ATP World Tour Finals after winning their second Group A match on Thursday. The Indo-Czech pair beat sixth seeds Marcel Granollers and Marc Lopez of Spain 7-5, 6-4 in 92 minutes.
Niki Poonacha earns Grand Slam debut, wins Australian Open wild card play-off with Thai partner
Indian duo of Leander Paes and Mahesh Bhupathi stormed into the semi-finals of the ATP World Tour finals doubles competition after an easy straight-set victory over top seeds and three-time winners Bob and Mike Bryan, in London.
Defending champion Roger Federer made a winning start at the ATP World Tour Finals with 6-2, 2-6, 6-4 victory in his opening round-robin match against Jo-Wilfried Tsonga at the O2 on Sunday.
US Open champion Andy Murray withstood an early onslaught to beat Tomas Berdych in his first match on home soil since winning his maiden grand slam title and Novak Djokovic overcame Jo-Wilfried Tsonga as the ATP World Tour Finals began on Monday.
Roger Federer sent a timely reminder to Rafael Nadal on Sunday, out-gunning the World No 1 to win the ATP World Tour Finals with an irresistible display of attacking tennis.
Americans Bob and Mike Bryan stood one match away from ending the season ranked on top of the world as they reached the doubles final at the ATP World Tour Finals with a 6-4 6-4 win over Mahesh Bhupathi and Mark Knowles. The second seeds will usurp Daniel Nestor and Nenad Zimonjic as world number ones if they beat Max Mirnyi and Andy Ram in the showpiece match on Sunday.
For all his renowned mental strength it was psychological exhaustion that made Rafael Nadal consider skipping the season-ending ATP World Tour finals this year, the 14-times grand slam champion said on Tuesday.
Stanislas Wawrinka will hang up his racquet at the end of 2026, the three-times Grand Slam champion announced on Friday, bringing down the curtain on a 24-year professional career that saw him gatecrash tennis's elite during the sport's golden era.
Russian Medvedev, 29, last won a title at the Italian Open in May 2023 and has lost six finals since, including at the U.S. Open and Australian Open.
Serbia's Novak Djokovic cemented his place as the world's top tennis player when he dethroned Roger Federer in an enthralling showdown at the ATP World Tour Finals, grinding down the Swiss to take the title 7-6, 7-5.
Rohan Bopanna and Aisam-ul-haq Qureshi suffered their second defeat in the ATP World Tour Finals, beaten by second seeds Michael Llodra of France and Nenad Zimonjic of Serbia in Group A, in London, on Tuesday. The fifth seed 'Indo-Pak Express' lost 6-7(6), 3-6.
Novak Djokovic ran into a spot of bother before seeing off Davis Cup team mate Viktor Troicki 4-6, 6-3, 6-1 to secure his place in the quarter-finals of the Paris Masters on Thursday. Czech Tomas Berdych booked his place for the ATP World Tour Finals with a 7-5, 6-4 win over Serb Janko Tipsarevic.
Leander Paes and his Czech partner Lukas Dlouhy's chances of making the knockout stage of the ATP World Tour Finals' doubles event suffered a jolt after they were handed a straight-set defeat by debutants Lukasz Kubot and Oliver Marach in their opening Group B match in London on Monday.
Towering Argentine Juan Martin del Potro snapped Roger Federer's three-year unbeaten sequence at the ATP World Tour Finals on Saturday to earn a semi-final against world number one Novak Djokovic at the season-ending showpiece.
While off-court battles over pay and governance rumbled on, opportunities were scarce beyond the duopoly at the top of the men's game, leaving Djokovic to provide the year's standout moments for the chasing pack.
Sunday's showdown between four-times Grand Slam champion Sabalenka and former world number 13 Kyrgios is seen by many as entertainment, but critics believe it risks undermining women's tennis by trivialising decades of progress toward equality.
Kyrgios beats Sabalenka in 'Battle of the Sexes' showdown
Rafa Nadal was eliminated from the ATP World Tour Finals, on Thursday, after being outgunned by an inspired Jo-Wilfried Tsonga in an absorbing late-night battle at the O2 Arena, in London.
Carlos Alcaraz has defended his decision to play in the lucrative Six Kings Slam exhibition event in Saudi Arabia
Nagal's ranking nosedives to 233, still-strong Bopanna out of top-50 for first time in 15 years
Rohan Bopanna and Aisam-ul-haq Qureshi began their ATP World Tour Finals campaign with a defeat against Daniel Nestor and Max Mirnyi, albeit after a good fight in a group B match, in London on Sunday.
Old foes Rafa Nadal and Roger Federer will meet in the group stage of the ATP World Tour finals starting in London on Sunday while World No. 1 Novak Djokovic will clash with No. 3 Andy Murray.
The seventh seeded pair beat the Austria-Brazilian combination of Alexander Peya and Bruno Soares 6-3, 5-7, 10-8 in an hour and 42 minutes.
Leander Paes and Mahesh Bhupathi revived their ATP World Tour finals campaign with a straight- set victory over Jurgen Melzer and Philip Petzschner in a group A round-robin match, in London, on Wednesday.
Veterans Leander Paes and Mahesh Bhupathi and debutants Rohan Bopanna and Aisam-ul-haq Qureshi were, on Tuesday, placed in different groups for the season-ending ATP World Tour finals, starting, in London, on Sunday.
Argentina's Juan Martin del Potro put himself back in contention at the ATP World Tour Finals on Tuesday, beating Spain's Fernando Verdasco 6-4 3-6 7-6 in front of another near sell-out crowd at London's O2 Arena.
Rafael Nadal has booked his place at the World Tour finals after winning a record eighth French Open title, the ATP said on Monday.
The parade of serial grand slam champions is reserved for Tuesday at the ATP World Tour Finals but the supporting cast provided compelling opening acts with Stanislas Wawrinka and Juan Martin del Potro in the spotlight.
American Andy Roddick has booked his place at the World Tour Finals with four weeks of the season remaining, the ATP said on Tuesday.
Just nine days after his loss to Fritz, which snapped his 13-match unbeaten streak, the world number one defeated the American 6-4, 6-4 in straight sets, capping an incredible debut at the ATP 500 event and securing his career-best 67th season win, continuing a dream season.
Japan Open: Alcaraz marches into quarterfinals, hails "best physio in the world" after overcoming ankle issues