Melanie Oudin, Dinara Safina advance

Updated: April 21, 2011, 1:21 PM ET
Associated Press

FEZ, Morocco -- Melanie Oudin of the United States advanced with a walkover win Thursday and Dinara Safina defeated Alize Cornet 6-1, 6-3 to reach the quarterfinals of the Grand Prix SAR.

Oudin's opponent, Polona Hercog of Slovenia, withdrew with a right ankle injury. Oudin will face Alberta Brianti of Italy, who defeated Ksenia Pervak of Russia 7-5, 6-2.

Safina improved her record against the eighth-seeded Cornet to 3-0. She will play Anastasia Pivovarova of Russia, who upset second-seeded Yaroslava Shvedova of Kazakhstan 6-2, 7-6 (5).

Copyright 2011 by The Associated Press