Round-up: Novak Djokovic kicked off the defence of his title with a 6-3 6-3 win over Denis Istomin in Dubai.
World number five Juan Martin Del Potro has admitted his future is unclear after pulling out of the Dubai Tennis Championships with a wrist injury.
Novak Djokovic said Boris Becker can help him acquire a greater mental toughness to better his recent record in grand slam finals.
Juan Martin del Potro said he will not play in Argentina's Davis Cup playoff tie in September due to his differences with the Argentine Tennis Association.
Marin Cilic ousted second seed Andy Murray 6-3 6-4 to book a semi-final spot at the ATP Rotterdam event.
ATP round-up: Andy Murray dropped a set on his way to a 6-4 3-6 6-3 win over Dominic Thiem in the second round in Rotterdam.
Round-up: Andy Murray eased into round two of the ABN Amro World Tennis Tournament after beating Edouard Roger-Vasselin 6-3 6-3.
Andy Murray says his back is no longer hurting and that he is looking forward to competing in the ATP Rotterdam event.
Juan Martin del Potro will defend his Rotterdam ATP title next week after a 20-day break to recover from a wrist injury.
Carlos Moya takes charge of his first Davis Cup tie this weekend, trying to plot Spain's path past Germany.
Andy Murray slipped out of the top four while Stan Wawrinka is the new world number three as the new rankings were released.
Rafael Nadal needed over three hours to wear down Kei Nishikori 7-6(3) 7-5 7-6(3) and advance to the Australian Open quarter-finals.
ATP World Tour Finals
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