Davenport was scheduled to play eighth-seeded Francesca Schiavone in a first-round match on yesterday and was looking to return to action for the first time since pulling out of her second-round match at Wimbledon.
Davenport won the Bank of the West Classic in 1998, 1999 and 2004.
While Davenport is gone, eight-time Grand Slam champion Serena Williams is in the field and will take the court today for her opening match.
Williams is adamant she does not plan on ending 2008 without a grand slam title or an Olympic gold medal.
“I can’t say I’m pleased with my year because I haven’t won any grand slams this year,” Williams said on Monday. “That’s always been the goal for me.”
“So I have to win something eventually. I feel like I should be able to win for the most part and sometimes I get disgusted because I didn’t make the right shots, or made a lot of errors,” she said.
On Monday, Japan’s Ai Sugiyama, Alisa Kleybanova of Russia and Austrian Sybille Bammer advanced to the sdcond round at Stanford.
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