Anastasia Pavlyuchenkova of Russia hits a return during the women's singles final match against Carla Suarez Navarro of Spain at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)

Carla Suarez Navarro of Spain hits a return during the women's singles final match against Anastasia Pavlyuchenkova of Russia at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)

Anastasia Pavlyuchenkova of Russia poses with the trophy after the women's singles final match against Carla Suarez Navarro of Spain at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)

Anastasia Pavlyuchenkova of Russia hits a return during the women's singles final match against Carla Suarez Navarro of Spain at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)

Anastasia Pavlyuchenkova of Russia celebrates after scoring during the women's singles final match against Carla Suarez Navarro of Spain at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)

Anastasia Pavlyuchenkova of Russia hits a return during the women's singles final match against Carla Suarez Navarro of Spain at the 2013 Portugal Open in Lisbon, Portugal, May 4, 2013. Pavlyuchenkova won 2-0 to claim the title. (Xinhua/Zhang Liyun)