Originally Posted by Jeffrey573639
I think Rafa's injury problems are slightly more problematic than Fed,Djoko or Muzza
As Nadal said a couple of months ago "Nobody has retired with what I have"; Serena, Venus being prime examples of tendinitis sufferage that really only extended their careers (and they've had it in their knees AND wrists since they were teenagers), because it forced them to rest, and Nadal also claimed his holiday in 2012 will extend his career. Whereas back problems are the main cause for tennis retirement (Sampras, Agassi, and many, many others). Back problems really put a full-stop on a career.