Maria Sharapova concedes No. 1 ranking to Serena Williams
Tennis | Oct 24, 2014, 04:52 PM ISTSingapore: Maria Sharapova failed to advance out of the WTA Finals groups and conceded the year-end No. 1 ranking to Serena Williams despite a three-set victory over Agnieszka Radwanska on Friday. Sharapova needed to win