Federer maintains perfect record

Defending champion Roger Federer kept his perfect record intact at the Barclays ATP World Tour Finals this year with a 6-1 3-6 6-3 victory over Mardy Fish at the O2 Arena.

The world number four had already secured his place in the semi-finals with Tuesday’s stunning win over Rafael Nadal, while Fish was playing purely for pride after two defeats.

The victory was Federer’s eighth in a row at the tournament after he went through last year’s event unbeaten, while he also made it 15 successive victories since the US Open.