Serena Williams reacts while playing against Victoria Azarenka, of Belarus, during the championship match at the 2012 US Open tennis tournament, Sunday, Sept. 9, 2012, in New York. (AP Photo/Darron ... more 

Serena Williams reacts while playing against Victoria Azarenka, of Belarus, during the championship match at the 2012 US Open tennis tournament, Sunday, Sept. 9, 2012, in New York. (AP Photo/Darron Cummings) less