Roger Federer is currently playing in the Hopman Cup in Perth in preparation for the Australian Open, and on the evidence of his mixed doubles match against America on Thursday, the Swiss great is enjoying his foray down-under. 

Federer and his doubles partner Belinda Bencic had already secured a place in the final by winning their respective singles matches, and with nothing riding on the result, the final rubber took on a party atmosphere with players keen to entertain the crowd.

Bencic and the U.S. female player CoCo Vandeweghe clearly felt that the men were hogging the action, and for comic effect both sat down mid-rally to emphasise their point.

Even that wasn't enough to deter Federer, however, and both women moved to the sidelines as the reigning Australian Open and Wimbledon Champion continued a playful rally with Jack Sock.

The pair began exchanging tweeners and behind-the-back shots as the amused crowd watched on before Sock eventually took a consolation point with a brilliant tweener winner - scroll down to see the video.

Unfortunately for Sock and Vandeweghe, the point wasn't enough to stop another defeat, and the tie ended with a 3-0 whitewash for the Swiss team.

Federer and Bencic face either Australia or Germany in the final on Saturday.

The Hopman Cup could be yet another trophy for the resurgent and re-vitalised Federer, who rolled back the years in 2017 to have his best year in over a decade.

He'll be hoping to retain his Australian Open crown when the tournament gets underway on January 15, after defeating his arch-rival Rafael Nadal in a five-set thriller in last year's final.

The 36-year-old won't have to worry about former Australian Open finalist Andy Murray in Melbourne, who pulled out with a long-term hip problem earlier this week.