Roger Federer, of Switzerland, serves to Stanislas Wawrinka, of Switzerland, during their match at the BNP Paribas Open tennis tournament, Wednesday, March 13, 2013, in Indian Wells, Calif. (AP ... more 
Roger Federer, of Switzerland, serves to Stanislas Wawrinka, of Switzerland, during their match at the BNP Paribas Open tennis tournament, Wednesday, March 13, 2013, in Indian Wells, Calif. (AP Photo/Mark J. Terrill) less 
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Associated Press | Photo By Mark J. Terrill
Wed, Mar 13, 2013 10:14 PM EDT