Stanislas Wawrinka of Switzerland returns the ball to Carlos Berlocq of Argentina during their match at the Paris Tennis Masters tournament, Tuesday, Oct. 30, 2012. (AP Photo/Christophe

 

              Stanislas Wawrinka of Switzerland returns the ball to Carlos Berlocq of Argentina during their match at the Paris Tennis Masters tournament, Tuesday, Oct. 30, 2012. (AP Photo/Christophe
Stanislas Wawrinka of Switzerland returns the ball to Carlos Berlocq of Argentina during their match at the Paris Tennis Masters tournament, Tuesday, Oct. 30, 2012. (AP Photo/Christophe Ena)