Stan Wawrinka, Tommy Robredo into Portugal Open quarterfinals

Anastasia Pavlyuchenkova beat Elena Vesnina 6-3, 6-7 (3), 7-6 (3) to make the semifinals.

Armando Franca/AP

Second-seeded Stanislas Wawrinka of Switzerland rallied past Albert Ramos of Spain 1-6, 6-3, 6-4 Thursday to move into the Portugal Open quarterfinals.

Eighth-seeded Tommy Robredo also advanced on the Spaniard's 31st birthday, defeating Robin Haase 6-4, 6-4.

On the women's side, fourth-seeded Carla Suarez Navarro of Spain is into the semifinals with a 6-2, 6-4 victory over Monica Puig of Puerto Rico.

Romina Oprandi also advanced with a 6-2, 6-2 win against Svetlana Kuznetsova.