Russia's Maria Sharapova plays a forehand shot during her second round women's singles victory over Bulgaria's Tsvetana Pironkova on day four of the 2012 Wimbledon Championships tennis tournament at the All England Tennis Club in Wimbledon, southwest London, on June 28, 2012. AFP PHOTO / GLYN KIRK     RESTRICTED TO EDITORIAL USE        (Photo credit should read GLYN KIRK/AFP/GettyImages)