FILE - This Aug. 4, 2012 file photo shows Serena Williams posed with her 2012 Summer Olympics gold medal during the podium ceremony of the women's singles final match at the All England Lawn Tennis Club at Wimbledon, in London. Williams has been named the WTA's Player of the Year after winning major titles at Wimbledon and the U.S. Open, and claiming gold at the London Olympics. (AP Photo/Elise Amendola, File)

Photo by: Elise Amendola

FILE - This Aug. 4, 2012 file photo shows Serena Williams posed with her 2012 Summer Olympics gold medal during the podium ceremony of the women's singles final match at the All England Lawn Tennis Club at Wimbledon, in London. Williams has been named the WTA's Player of the Year after winning major titles at Wimbledon and the U.S. Open, and claiming gold at the London Olympics. (AP Photo/Elise Amendola, File)