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.
Juan Martin del Potro believes he can muscle his way into the world's top four next year after returning to the kind of form that propelled him to the US Open title three years ago.
Roger Federer's unique appeal showed no sign of waning on Sunday as he gate-crashed what was supposed to be Andy Murray's party in the semi-finals of the ATP World Tour Finals.
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.
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.
Argentina's Juan Martin del Potro found himself in a strangely familiar position at the ATP World Tour Finals on Thursday after keeping his hopes on track with victory over Janko Tipsarevic.
Defending champion Roger Federer guaranteed his place in the last four of the ATP World Tour Finals with a straight-sets win over Spain's David Ferrer on Thursday.
Mahesh Bhupathi and Rohan Bopanna's hopes of making it to the semi-finals at the ATP World Tour Finals remained alive after they beat Robert Lindstedt and Horia Tecau 6-3, 5-7, 10-5 in their second outing at the O2 Arena, in London, on Wednesday.
The Indian pair of Mahesh Bhupathi and Rohan Bopanna squandered two match-points before losing to Jonathan Marray and Frederik Nielsen in their opening match at the ATP World Tour Finals, in London, on Tuesday. The Indians, making their debut as a pair in the elite season-ending event, lost their Group B match 6-4, 7-6(1), 10-12 in 96 minutes.
Roger Federer chalked up yet another record when victory over Janko Tipsarevic at the ATP World Tour Finals on Tuesday put him top of the list for match wins at the traditional season-ender. The 17-times Grand Slam champion cruised to a 6-3, 6-1 victory over the Serbian world number nine, taking his haul of victims in the event to 40, one more than Ivan Lendl.
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.
A tired sounding Novak Djokovic says he will need to draw on all his mental and physical strength if he is to crown another stellar season with the ATP World Tour Finals title.
The decision by the 36-year-old Swiss, who was stunned in the final of last year's Rogers Cup in Montreal by German Alexander Zverev, comes less than two weeks after his quarter-final loss at Wimbledon.
India's Rohan Bopanna and Romania's Florin Mergea won their second title of the season together.
World No 5 David Ferrer beat unseeded Ukrainian Alexandr Dolgopolov 6-1 3-6 6-4 to win the Valencia Open for the third time on Sunday, claiming his sixth ATP World Tour title this year.
World No 2 Federer became the first player to book his place in the semi-finals of the season-ending ATP World Tour Finals by seeing off a spirited challenge from 20-year-old Alexander Zverev of Germany 7-6 (8-6), 5-7, 6-1 in a thrilling round robin clash that lasted two hours and 11 minutes on Tuesday.
David Ferrer has ensured Spanish representation at the ATP World Tour finals by booking his place at the eight-man finale taking place in London for the fourth year next month.
The Indian duo of Mahesh Bhupathi and Rohan Bopanna has set up a summit clash with Leander Paes and his Czech partner Radek Stepanek after both the pairs won their respective semi-final matches in the Shanghai Masters on Saturday.
Rafael Nadal has no timeline for his return to competitive tennis but on Tuesday the world number four did not completely rule out the possibility of returning from injury in time for next month's Davis Cup and ATP World Tour finals.
Leander Paes and his Czech partner Radek Stepanek faltered at the final hurdle as they suffered an upset straight-set defeat at the hands of Alexander Peya of Austria and Brazil's Bruno Soares to finish runners-up at the ATP Japan Open in Tokyo on Sunday.
Novak Djokovic has reportedly proposed to move the ATP World Tours Finals from London after 2015 by citing the need to expose the tournament to more cities around the world.
It will be the second consecutive final for Paes and Angel, who also reached the final at Montrrey Challenger last week, ending runners-up to Jeevan Nedunchezhiyan and Marcelo Arevalo.
Frenchman Jo-Wilfried Tsonga saved a matchpoint before beating world number six Tomas Berdych 3-6, 7-6, 6-4 in the Marseille Open final to claim his 10th ATP Tour title on Sunday.
Divij Sharan and Purav Raja won their first title of the 2017 season and maiden on the clay courts by lifting the Bordeaux Challenger trophy.
Grigor Dimitrov claimed the biggest title of his career and sent out a huge statement of intent as the stylish Bulgarian beat David Goffin 7-5, 4-6, 6-3 to win the ATP Finals.
The retired American ace said women were willing to play five-set matches but used the entertainment industry to highlight her stance that athletes will get paid the same regardless of the duration of the matches.
Home favourite Roger Federer barely broke sweat as he beat David Goffin 6-2, 6-2 to win the Basel Indoor title for the sixth time on Sunday.
'I had a tough season in the last few years, but I've had better preparation this year, even with a tough start to the season'
Rafael Nadal continued his resurgence with a thrilling 2-6, 6-4, 6-2 victory over world number two Andy Murray on Saturday to reach the final of the Monte Carlo Masters.
"Regrettably, I've decided not to participate in the French Open," Federer said on his Facebook page on Monday.
The 17-time Grand Slam champion Roger Federer believes that Rafael Nadal is still the favourite to win the French Open next month despite the Spaniard's recent struggles to regain form.
Tomic had to battle hard against the top seed, saving four match points in a tense final set before wrapping up the match in two hours and 15 minutes.
Rafael Nadal continued to scythe his way through the Shanghai Masters on Thursday, reaching the quarter-finals with a 6-3, 6-1 thrashing of temperamental Italian Fabio Fognini.
'I'm always surprised when I walk off court after a final and I'm like 'where is anti-doping?'
Here are some facts about Federer and his ranking.
French Open champion Stan Wawrinka has become the fourth player to qualify for the season-ending ATP World Tour Finals in London.
Roger Federer eased his way into the ATP World Tour Finals with a 6-1, 7-6 (0) defeat of Canadian newcomer Milos Raonic in his opening round-robin match on Sunday.
Roger Ferdrer came up with a solid all-round display to beat world No 1 Rafael Nadal 6-4, 6-3 in the final and win the Shanghai Masters on Sunday.
Mahesh Bhupathi clinched his 50th career title and his first with Rohan Bopanna when the duo outwitted Poles Mariusz Fyrstenberg and Marcin Matkowski to lift the Dubai Duty Free Tennis Championships doubles men's trophy.
For a set not even the granite defence of Novak Djokovic could withstand the irresistible brute force of Juan Martin del Potro on Sunday but the Serb then rode out the storm to win the opening semi-final at the ATP World Tour Finals.