Federer advances after battle

World number one Roger Federer was forced to fight for his place in the third round of the Japan Open before clinching a 7-6 (7/2) 7-6 (7/3) victory over Viktor Troicki.

Federer played within himself in his first ever match in Japan but ripped through the first-set tie-break for the loss of just two points against the hard-serving Troicki.