Australian Open seeds fared

MELBOURNE, Australia (AP) -How the seeded players fared Sunday at the Australian Open at Melbourne Park (seedings in parentheses):

Fourth Round

Roger Federer (2), Switzerland, def. Tomas Berdych (20), Czech Republic, 4-6, 6-7 (4), 6-4, 6-4, 6-2.

Novak Djokovic (3), Serbia, def. Marcos Baghdatis, Cyprus, 6-1, 7-6 (1), 6-7 (5), 6-2.

Andy Roddick (7), United States, def. Tommy Robredo (21), Spain, 7-5, 6-1, 6-3.

Juan Martin del Potro (8), Argentina, def. Marin Cilic (19), Croatia, 5-7, 6-4, 6-4, 6-2.

WomenFourth Round

Dinara Safina (3), Russia, def. Alize Cornet (15), France, 6-2, 2-6, 7-5.

Vera Zvonareva (7), Russia, def. Nadia Petrova (10), Russia, 7-5, 6-4.

Marion Bartoli (16), France, def. Jelena Jankovic (1), Serbia, 6-1, 6-4.

Jelena Dokic, Australia, def. Alisa Kleybanova (29), Russia, 7-5, 5-7, 8-6.

Australian Open seeds fared