Nishikori upsets top-seeded Cilic to reach semis

Top-seed Marin Cilic lost in straight sets to Kei Nishikori of Japan in the quarterfinals Friday of the U.S. National Indoor Tennis Championships.

Top-seed Marin Cilic lost in straight sets to Kei Nishikori of Japan in the quarterfinals Friday of the U.S. National Indoor Tennis Championships.
Defending champion Andy Murray advanced to the Brisbane International final after fifth-seeded Kei Nishikori retired with an injured left knee during their semifinal on Saturday.

Serena Williams proved the break between seasons hasn’t hurt her momentum, capturing her 47th career title with a comprehensive 6-2, 6-1 victory over Anastasia Pavlyuchenkova in Saturday’s Brisbane International final.
Serena Williams’ bid for a record sixth Key Biscayne title ended Tuesday night when she lost in the quarterfinals of the Sony Ericsson Open to former No. 1 Caroline Wozniacki, 6-4, 6-4.