Maria Sharapova defeated Yanina Wickmayer in the second round . The Russian was forced to retire after suffering a thigh injury during her match against American Sloane Stephens.
Maria Sharapova defeated Yanina Wickmayer in the second round . Defending champion Flavia Pennetta beat Madison Brengle in Indian Wells . Eugenie Bouchard got her BNP Paribas Open bid off to winning start .