LOS ANGELES, July 13 (UPI) -- Defending champ Wayne Ferreira lost to second-seeded Paradorn Srichaphan, 6-3, 7-6 (7-4) Tuesday in the opening round of the Mercedes Benz Cup.
Later Tuesday, top-seeded Andre Agassi sought to become the sixth player to reach 800 career victories on the ATP Tour when the three-time champion faced American Alex Bogomolov Jr.
Ferreira, 32, has captured 15 ATP titles in his 15-year career. He has decided to retire following next month's U.S. Open -- his 56th consecutive Grand Slam event -- and a Davis Cup tie.
Fourth-seeded Slovakian Dominik Hrbaty fell early Tuesday morning to German Nicolas Kiefer.
No. 3 Mardy Fish overcame a slow start to stop Jan Vacek of the Czech Republic, 7-6, (7-5) 6-2, but United States Olympic teammates Vince Spadea and Taylor Dent went out.
Frenchman Cyril Saulnier advanced when the sixth-seeded Spadea retired with back spasms after losing the first set.
