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AP Ana Ivanovic of Serbia serves to Sara Errani of Italy during their second round singles match at Wimbledon, Thursday, June 25, 2009. (AP Photo/Kirsty - Photo

Ana Ivanovic of Serbia serves to Sara Errani of Italy during their second round singles match at Wimbledon, Thursday, June 25, 2009. (AP Photo/Kirsty

Ana Ivanovic of Serbia serves to Sara Errani of Italy during their second round singles match at Wimbledon, Thursday, June 25, 2009. (AP Photo/Kirsty - Thursday June 25, 04:39 PM
Ana Ivanovic of Serbia serves to Sara Errani of Italy during their second round singles match at Wimbledon, Thursday, June 25, 2009.