Serena out of tourney with knee injury (AP)

[ASFN Admin]

Serena Williams has withdrawn from the East West Bank Classic because of a left knee injury. After practicing Tuesday morning, Williams said she knew she couldn't play this week. She was scheduled to play her first match Wednesday against Petra Kvitova of the Czech Republic. Williams withdrew from Saturday's semifinals at Stanford after injuring her knee, the same knee that kept her out of the 2004...

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