Andy Murray swept into the semifinals of the ATP Tour Finals as the world number three defeated France's Jo-Wilfried Tsonga 6-2, 7-6 (7/3) at London's 02 Arena on Friday.

After Novak Djokovic's win overTomas Berdych earlier on Friday, Murray knew he only needed to take one set off seventh seeded Tsonga to guarantee his third appearance in the last four of the season-ending event.

The 25-year-old took just 33 minutes to achieve his goal and he eventually sealed his second win of the tournament, advancing from Group A in second place behind Djokovic, despite a late flurry from Tsonga.

After a glorious year which has featured his first Grand Slam tide at the US Open, a gold medal in the Olympic singles and a first appearance in the Wimbledon final, Murray would love to cap the campaign with a first Tour Finals crown.

To do that he is likely to have to get past defending champion Roger Federer, who will be the Scot's semifinal opponent on Sunday if, as expected, the Wimbledon champion finishes top of Group B.

Later, On Saturday, Roger Federer was beaten 7-6,4-6,6-3 by Juan Martin Del Potro in their Group B match. This means that the top spot in Group B will now be decided by the outcome of the evening encounter between Janko Tipsarevic and David Ferrer. If Tipsarevic wins, Del Potro faces Murray; if Ferrer wins, Federer plays the Brit.

Tsonga, beaten in his previous two group matches, required a straight sets victory to sneak through at Murray's expense, but his track record suggested the outcome wouldn't go his way.

Murray had won six of their previous seven clashes.