As much as it is physical, this is not the 2010 version of him pushing Soderling, Murray, and Berdych around. Not sure what he can do about that though, from all the setbacks he's had. It's also clearly mental. Getting a different perspective from somebody who knows what they're talking about, it wouldn't hurt him. You have to get the right person, obviously. Can't get somebody like Navratilova, it's not about titles obviously a lot of these commentators are completely clueless. Call Moya, Borg, Henin even.