Rafael Nadal's Comeback Hinges on Clay-Court Performances

Clay will always be home for Rafael Nadal. It's the surface the Spanish tennis star grew up playing on, and the one which he has conquered time and time again as a professional. That's why his comeback from an injured left knee hinges on his clay-court success in 2013. Rafa will begin his comeback this month on the clay in Chile, the site of the 2013 ATP VTR Open, where he'll take part in singles and double action in an effort to get back to where he was nearly a year ago. The king of clay, Nada...