Originally Posted by Allez
Nerves and the wind. One of the major reasons Federer is the player he is, is his incredible footwork and timing. When that part of his game is not 100%, he goes shanking. The conditions can affect his footwork and timing so can his nerves. In the future, age will come into play so you can expect more shanking as the years go by...
True. He shanks more when it's windy or when he's nervous out there. Both timing and footwork are less accurate.