Novak Djokovic and Serena Williams, the top seeds at the Western & Southern Open outside Cincinnati, reached the semifinals. Djokovic beat fifth-seeded Stan Wawrinka, 6-4, 6-1, while Williams defeated Ana Ivanovic, 3-6, 6-4, 6-2.
Djokovic will play the qualifier Alexandr Dolgopolov, who upset sixth-seeded Tomas Berdych, 6-4, 6-2. Third-seeded Andy Murray beat Richard Gasquet, 4-6, 6-1, 6-4. He will face Roger Federer, a 6-3, 6-4 winner over Feliciano López.