In the other semifinal, fifth seed Guillermo Garcia-Lopez takes on world No. 133 Frederico Gil, having progressed when fellow Spaniard Alberto Martini retired due to illness.

CNN: STORY HIGHLIGHTS

Spanish 26th seed Marcel Granollers will play Tsonga or Mello if he defeats Portugal's Frederico Gil, while Argentina's world No. 29 Juan Ignacio Chela could face Ferrer if he gets past Spain's Pablo Andujar.

CNN: Champion Djokovic backs calls for change in men's tennis