Serbia needed a champions tie-break in the deciding mixed doubles rubber to beat Australia after Novak Djokovic suffered a surprise defeat to Bernard Tomic in the Hopman Cup in Perth.

Kim Clijsters made a winning return to the professional circuit today with a 6-4 6-3 success against Marion Bartoli of France at the Women's Open in Cincinnati.

DEFENDING champion Venus Williams launched her bid for Wimbledon singles title number six with a 6-3 6-2 win over Stefanie Voegele yesterday.