"A tennis ball on the clay surface of Roland Garros during practice before the start of the French Open Tennis Tournament in Paris, France on Saturday, May 23, 2009. Photo Tim Clayton " (Photo by Tim Clayton/Corbis via Getty Images)
"A tennis ball on the clay surface of Roland Garros during practice before the start of the French Open Tennis Tournament in Paris, France on Saturday, May 23, 2009. Photo Tim Clayton " (Photo by Tim Clayton/Corbis via Getty Images)