Defending champion Stanislas Wawrinka progressed through to the quarter-finals of the Chennai Open today, but needed to come back from a set down to do so.

Former world number one Andy Roddick won his first match since Wimbledon when he enjoyed a regulation straight-sets victory over Edouard Roger-Vasselin at the Winston-Salem Open.

Roger Federer steered clear of trouble as he cruised to a straight-sets first-round Wimbledon victory over Mikhail Kukushkin from Kazakhstan.

Top seed and US Open champion Juan Martin Del Potro was dumped out of the Rakuten Japan Open in Tokyo today as he lost his first-round match 6-4 6-4 against French qualifier Edouard Roger-Vasselin.

TOP-RANKED Roger Federer showed no lasting effects from a nasty stomach bug, routing Diego Hartfield of Argentina 6-0, 6-3, 6-0 yesterday to open his quest of a third consecutive Australian Open title.

JELENA JANKOVIC’S credentials as a dark horse for the French Open title were further enhanced as she won a high-quality third-round clash against Venus Williams yesterday.