Jo-Wilfried Tsonga double-faulted on match point to lose to Kei Nishikori and fail to qualify for the World Tour Finals.
Novak Djokovic started his Paris Masters campaign with a routine second-round 7-6(3) 6-3 win over Pierre-Hugues Herbert.
Juan Martin del Potro dismantled Marcos Baghdatis to progress to the quarter-finals of the Basel Open in Switzerland.
Round-up: Roger Federer came from a set down to beat world number 48 Denis Istomin 4-6 6-3 6-2.
Two tennis stars have now caused controversy with underarm serves at the US Open, but why are they doing it?
Andy Murray opened the defence of his US Open title with a masterly 6-2 6-4 6-3 thrashing of France's Michael Llodra.
Serena Williams' centre court clash was among dozens of matches postponed because of rain on a gloomy day at the US Open.
Order of play for day three of the US Open, with Andy Murray and Serena Williams both in action.
Andy Murray will face Michael Llodra in the first round of the US Open and could face Novak Djokovic in the semi-finals.
Round-up: Novak Djokovic made a solid return to action with a 6-2 6-1 win over Florian Mayer at the Montreal Masters.
Round-up: Novak Djokovic moved into the third round with a 7-6(2) 6-3 6-1 win over American qualifier Bobby Reynolds.
Novak Djokovic cruised past Germany's Florian Mayer 6-3 7-5 6-4 to reach the second round of Wimbledon.
Nicolas Mahut claimed his maiden ATP title in style, beating favourite Stanislas Wawrinka 6-3 6-4 in the final at Den Bosch.
Round-up: Canadian top-seed Milos Raonic has suffered a surprise second-round defeat to Ivan Dodig at Eastbourne.
World number four David Ferrer suffered a shock first round loss to Xavier Malisse at the Topshelf Open in s'Hertogenbosch.
ATP World Tour Finals
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