CARLSBAD, Calif., July 26 /PRNewswire/ -- Melanie Oudin, America's tennis sweetheart, will play in the 2010 Mercury Insurance Open Presented by Tri-City Medical Center, tournament officials announced today. The Sony Ericsson WTA Tour event is scheduled for July 31 - Aug.

CARLSBAD, Calif., July 21 /PRNewswire/ -- Tournament officials announced today that 2010 French Open singles finalist Samantha Stosur has entered the 2010 Mercury Insurance Open Presented by Tri-City Medical Center, scheduled for July 31 to Aug.

CARLSBAD, Calif., July 20 /PRNewswire/ -- Tournament officials announced today that Victoria Azarenka, (a-zuh-REN-Kuh) currently ranked No. 11 on the Sony Ericsson WTA Tour, has committed to play in the 2010 Mercury Insurance Open Presented by Tri-City Medical Center.

Czech Lucie Safarova and Italian Roberta Vinci scored first-round upsets Sunday in the Toray Pan Pacific Open in Tokyo. Safarova, ranked 44th in the world, ousted former world No. 1 Ana Ivanovic of Serbia 6-4, 7-6 (7-1) and Vinci, ranked No.

Venus Williams was upset Tuesday by Ukrainian qualifier Kateryna Bondarenko at the $2 million Rogers Cup. The third-seeded Venus, a former world No. 1, lost to Bondarenko 1-6, 7-5, 6-4 in second-round action.