Video: Roger Federer dons moustache and fakes accent for ad

Seventeen Grand Slam title winner Roger Federer has donned a disguise for a video advertising his new Wilson racquet.

The Swiss former world number one arrived on court wearing a moustache and speaking with a fake American accent to hide his identity from an amateur tennis player.

The pair go head-to-head, with Federer easily dominating his opponent, until they swap racquets and the amateur player suddenly improves his game.

Watch Federer in disguise below: