His elbow has been giving him trouble since the last clay season. After a few months playing in pain and the elbow not getting better, he went one day to a very normal pharmacy on the street, asked them if they had something against tennis elbow, and the guy gave him that which worked wonders. It's an elbow protection for club players, but he says it solved his problem better than all the other treatments for pros.
That is really interesting. Ironically, the first I've heard of tennis elbow (presumably) affecting a pro.