2-time champion Petra Kvitova makes a final appearance at Wimbledon before she retires

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AP2011

FILE - Petra Kvitova, left, of the Czech Republic and Russia's Maria Sharapova hold their trophies after Kvitova won in the ladies' singles final at the All England Lawn Tennis Championships at Wimbledon, July 2, 2011. (AP Photo/Anja Niedringhaus, file)