Indianapolis Championships men's singles semi-final result: 3-Dmitry Tursunov (Russia) beat 1-James Blake (U.S.) 4-6 6-3 6-4
Stanford Classic women's singles semi-final result: Aleksandra Wozniak (Canada) beat 1-Serena Williams (U.S.) 6-2 3-1 (S. Williams retired)
Serena Williams injured her left knee and pulled out of the Bank of the West Classic on Saturday.
Croatia Open men's singles semi-final results from Umag: 4-Igor Andreev (Russia) beat Maximo Gonzalez (Argentina) 6-2 7-6(2)
Top-seeded Fernando Verdasco needed less than an hour to beat Fabio Fognini of Italy 6-1, 6-3 Saturday in the semifinals of the Croatia Open.
Croatia Open men's singles semi-final result from Umag: 1-Fernando Verdasco (Spain) beat 7-Fabio Fognini (Italy) 6-1 6-3
British number one Andy Murray will open against a qualifier when he begins his summer hard-court season at the Toronto Masters.
Ninth-ranked Andy Murray will represent Britain in singles tennis at next month's Olympic Games, his first, and partner brother Jamie in the doubles.
Andy and Jamie Murray will represent Great Britain at next month's Olympic Games in Beijing.
Dutch Open men's singles semi-final results from Amersfoort: 5-Albert Montanes (Spain) beat Oscar Hernandez (Spain) 6-1 6-3
Defending champion Steve Darcis reached his third career ATP Tour final Saturday by beating top-seeded Frenchman Marc Gicquel 7-6 (3) 3-6 7-5 at the Dutch Open.
Austrian Open men's singles semi-final results from Kitzbuehel: 7-Juan Martin Del Potro (Argentina) beat Victor Hanescu (Romania) 6-3 7-6(5)
Gastein International women's singles results from Austria: Semi-finals: Lucie Hradecka (Czech Republic) beat Mariya Koryttseva (Ukraine) 6-3 6-2
Jurgen Melzer reached the Austrian Open final by beating last year's runner-up, Potito Starace, 6-4, 6-7 (8), 6-3 Saturday.
Top-seeded Agnes Szavay reached the semifinals of the Gastein Ladies on Saturday by defeating seventh-seeded Iveta Benesova 6-2, 6-2.
Dutch Open men's singles semi-final result from Amersfoort: 3-Steve Darcis (Belgium) beat 1-Marc Gicquel (France) 7-6(3) 3-6 7-5
Austrian Open men's singles semi-final result from Kitzbuehel: 6-Juergen Melzer (Austria) beat 4-Potito Starace (Italy) 6-4 6-7(6) 6-3
Venus Williams withdraws from next week's Los Angeles Classic with tendonitis in her right knee. Williams has not played a tour match since beating her sister Serena for her fifth Wimbledon title nearly two weeks ago. Lindsay Davenport has also pulled out with a knee injury.
Serena Williams beats Patty Schnyder to easily reach the semi-finals of the Stanford Classic.
James Blake beat unseeded Yen-Hsun Lu of Taiwan 6-2, 6-0 in the quarters of the Indianapolis Tennis Championships on Friday.