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A U.S. Open Series event
Thursday
At The Lindner Family Tennis Center
Mason, Ohio
Purse: Men, $3.43 million (Masters 1000); Women, $2.17 million (Premier)
Surface: Hard-Outdoor
Singles
Men
Third Round

Mardy Fish (10), United States, def. Radek Stepanek, Czech Republic, 6-3, 6-3.

Juan Martin del Potro (6), Argentina, def. Viktor Troicki, Serbia, 7-6 (2), 2-6, 6-1.

Jeremy Chardy, France, def. Andy Murray (3), Britain, 6-4, 6-4.

Marin Cilic (12), Croatia, def. Pablo Andujar, Spain, 7-6 (4), 6-2.

Roger Federer (1), Switzerland, def. Bernard Tomic, Australia, 6-2, 6-4.

Stanislas Wawrinka, Switzerland, def. Kei Nishikori (14), Japan, 6-3, 6-3.

Women
Third Round

Angelique Kerber (5), Germany, def. Andrea Hlavackova, Czech Republic, 6-4, 7-6 (5).

Agnieszka Radwanska (1), Poland, def. Sloane Stephens, United States, 6-1, 4-6, 6-4.

Petra Kvitova (4), Czech Republic, def. Peng Shuai, China, 6-2, 6-2.

Serena Williams (2), United States, def. Urszula Radwanska, Poland, 6-4, 6-3.

Sam Stosur (3), Australia, def. Ekaterina Makarova, Russia, 6-1, 6-3.

Venus Williams, United States, def. Sara Errani (7), Italy, 6-3, 6-0.

Doubles
Men
Second Round

Mariusz Fyrstenberg and Marcin Matkowski (3), Poland, def. Lukasz Kubot, Poland, and Janko Tipsarevic, Serbia, walkover.

Mahesh Bhupathi and Rohan Bopanna (6), India, def. Robin Haase, Netherlands, and Juan Monaco, Argentina, walkover.

Aisam-ul-Haq Qureshi, Pakistan, and Jean-Julien Rojer (8), Netherlands, def. James Blake and Sam Querrey, United States, 6-2, 7-6 (4).

Marcel Granollers and Marc Lopez (7), Spain, def. Juan Sebastian Cabal, Colombia, and Bruno Soares, Brazil, 2-6, 7-6 (3), 10-7 tiebreak.

Robert Lindstedt, Sweden, and Horia Tecau (4), Romania, def. Brian Baker and Rajeev Ram, United States, 6-4, 3-6, 10-6 tiebreak.

Ivan Dodig, Croatia, and Marcelo Melo, Brazil, def. Leander Paes, India, and Radek Stepanek (5), Czech Republic, 6-3, 4-6, 10-5 tiebreak.

Andreas Seppi, Italy, and Viktor Troicki, Serbia, def. Max Mirnyi, Belarus, and Daniel Nestor (1), Canada, 4-6, 6-4, 10-8 tiebreak.

Women
Second Round

Eleni Daniilidou, Germany, and Peng Shuai, China, def. Liezel Huber and Lisa Raymond (1), United States, 6-4, 6-4.

Quarterfinals

Nuria Llagostera Vives and Maria Jose Martinez Sanchez (6), Spain, def. Natalie Grandin, South Africa, and Vladimira Uhlirova, Czech Republic, 6-1, 6-2.

Darija Jurak, Croatia, and Katalin Marosi, Hungary, def. Varvara Lepchenko and Sloane Stephens, United States, 4-6, 7-5, 10-8 tiebreak.