Germany's Angelique Kerber serves the ball to Italy's Flavia Pennetta during their third round match in the French Open tennis tournament at the Roland Garros stadium in Paris, Friday, June 1, 2012. (AP Photo/Bernat Armangue)
Germany's Angelique Kerber serves the ball to Italy's Flavia Pennetta during their third round match in the French Open tennis tournament at the Roland Garros stadium in Paris, Friday, June 1, 2012. (AP Photo/Bernat Armangue)
