CINCINNATI (AP) -- Serena Williams arrived at the Western & Southern Open with an Olympic gold medal and a chance to win another tournament she had never won before.

Really, Serena, you haven't won here before.

During a pre-tournament news conference on Monday, Williams was confused about whether she had taken a title in Cincinnati.

Williams said: "Maybe I didn't. I can't keep up."

She has played the Cincinnati tournament three times and her best showing was a semifinal loss in 2006.

Williams followed-up her Wimbledon championship in July by overwhelming Maria Sharapova, 6-0, 6-1 to win the Olympics singles title.

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