Stanford: Serena Williams set up a marquee quarter-final clash with Maria Sharapova on Thursday at the $721,000 WTA Stanford hardcourt tournament.
The 13-time Grand Slam champion, battling to regain her elite ranking status after a lengthy layoff for injury and illness, defeated Russian Maria Kirilenko 6-2, 3-6, 6-2.
"I'm sure we'll both go out and do the best each of us can," Williams said of her looming clash with Sharapova, another former world number one. "It's nothing personal. It's my job and I want to get paid. I leave it on the court."