**FILE** In this June 26, 2012 file photo, Rafael Nadal of Spain returns a shot to Thomaz Bellucci of Brazil during a first round men's singles match at the All England Lawn Tennis Championships at Wimbledon, England. Nadal hasn't played tennis since June, mainly because of tendinitis in his left knee. (AP Photo/Anja Niedringhaus, File)

Photo by: Anja Niedringhaus

**FILE** In this June 26, 2012 file photo, Rafael Nadal of Spain returns a shot to Thomaz Bellucci of Brazil during a first round men's singles match at the All England Lawn Tennis Championships at Wimbledon, England. Nadal hasn't played tennis since June, mainly because of tendinitis in his left knee. (AP Photo/Anja Niedringhaus, File)