Roger Federer goes into the final day of round-robin matches against Kevin Anderson with Group Lleyton Hewitt finely poised.
Perennial O2 loser, Marin Cilic, finally got into the winning habit with only his second victory in 11 matches at the ATP Finals.
Novak Djokovic says Alexander Zverev is "the leader of the new generation" after his 6-4 6-1 victory over the German at the ATP Finals on Wednesday.
Greg Rusedski says you can "never discount" Roger Federer as the Swiss prepares to take on Kevin Anderson in a crunch clash at the ATP Finals on Thursday.
Novak Djokovic remains a red-hot favourite to draw level with Roger Federer on six titles at the ATP Finals after coming through against Alexander Zverev on Wednesday.
Former Wimbledon finalist Agnieszka Radwanska has announced her retirement from professional tennis at the age of 29.
Britain's Jamie Murray and Brazilian partner Bruno Soares have clinched their place in the ATP Finals doubles semi-finals for the third straight year.
Roger Federer has hit back at claims he gets preferential treatment from tennis tournaments due to his status as one of the sport's all-time greats.
Roger Federer put himself in with a chance of progressing to the knockout stages of the ATP Finals after defeating Dominic Thiem in straight sets on Tuesday night.
Roger Federer has confirmed that his four-year-old sons Leo and Lenny have been playing tennis "for a few years now".
Kevin Anderson says Tuesday's 6-0 6-1 victory over Kei Nishikori at the ATP Finals in London ranks among the best wins in his career.
Marin Cilic beats John Isner at the ATP Finals after Novak Djokovic defeats Alexander Zverev in Group Guga Kuerten.
Kevin Anderson moved a step closer to the semi-finals of the ATP Finals by crushing Kei Nishikori 6-0 6-1 in Group Lleyton Hewitt at London's O2 Arena.
Novak Djokovic has defended Roger Federer over claims the Swiss great enjoys preferential treatment on tour.
Cristiano Ronaldo was an interested spectator as world No 1 Novak Djokovic made a winning start to his ATP Finals campaign at The O2.
Novak Djokovic launched his campaign for a record-equalling sixth ATP Finals title with a comfortable victory against John Isner on Monday.
Kei Nishikori's return to the top echelons of the men's game in 2018 has been a remarkable story.
Alexander Zverev extended his winning streak to six in a row over Marin Cilic as the German made a fine start to his campaign at the ATP Finals in London.
France will be without Richard Gasquet when they take on Croatia in the Davis Cup final in two weeks' time.
Roger Federer bemoaned a code violation handed by umpire Damian Steiner after the six-time ATP Finals champion suffered a surprise defeat to Kei Nishikori.
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