Elena Dementieva returns from injury with Stanford win

Highlights - Schiavone beats Dementieva

World number six Elena Dementieva returned from an eight-week injury lay-off with victory over Japan's Kimiko Date Krumm in Stanford, USA.

The Russian, playing for the first time since retiring from her French Open semi-final against Francesca Schiavone on 3 June, won 3-6 6-3 6-4.

Top seed Samantha Stosur, at a career-high five in the world, beat American qualifier Christina McHale 6-1 7-5.

Third seed Agnieszka Radwanska and seventh seed Yanina Wickmayer also won.

Stosur will face Wickmayer in the quarter-finals on Friday, while Dementieva will play the winner of Thursday's match between Maria Sharapova and Olga Govortsova.

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Dementieva missed Wimbledon with a left calf injury - her first Grand Slam absence in more than 10 years - and was below her best against the 39-year-old Date Krumm.

"It's never easy to play without competition for two weeks and it took me a while to get into the game," said Dementieva.

"Sometimes it's good to go three sets and to face those difficult moments while finding a way to win."