Spain's Rafael Nadal, right, greets Roger Federer of Switzerland at the end of their final match at the Italian Open tennis tournament in Rome, Sunday, May 19, 2013. Nadal won 6-1, 6-3. (AP Photo/Alessandra Tarantino)
Spain's Rafael Nadal, right, greets Roger Federer of Switzerland at the end of their final match at the Italian Open tennis tournament in Rome, Sunday, May 19, 2013. Nadal won 6-1, 6-3. (AP Photo/Alessandra Tarantino)