BASTAD, Sweden — Top-seeded David Ferrer and Tommy Robredo won in straight sets toay to reach the quarterfinals of the Swedish Open.

Ferrer, the defending champion, defeated Boris Pashanski of Serbia 7-5, 6-1. Robredo defeated Swedish veteran Jonas Bjorkman 6-2, 6-3.

It was Bjorkman's last singles match at the clay-court tournament. The 36-year-old Swede, a nine-time Grand Slam doubles champion, is retiring after this season. He has won six doubles titles at Bastad.

Ferrer will play eighth-seeded Robin Soderling of Sweden and Robredo will take on seventh-seeded Jarkko Nieminen of Finland in Friday's quarterfinals.

Soderling, the last Swede in singles, downed Olivier Rochus of Belgium 6-3, 6-3, while Nieminen beat Steve Darcis of Belgium 6-3, 6-1.