Spanish tennis player Rafael Nadal takes part in a training session in Manacor on the Spanish Balearic Island of Mallorca on January 30, 2013. Nadal, who has been sidelined since June by a left knee injury and then a stomach complaint, will take part in the Vina del Mar tournament in Chile. AFP PHOTO/ Jaime REINA (Photo credit should read JAIME REINA/AFP/Getty Images)