Something tells me these two don't like each other beneath the surface. They do not play exos together. Roger did not show up to Djokovic and Nishikori's soccer game benefit in Miami to raise $ for Japan. Federer also did not show up to the Djokovic player show in Monte Carlo. Something tells me these two are not exactly bosom buddies and their could be a real competitive animosity and true dislike percolating between the icy and serious statesman Federer and the cocky, clowning future king Novak Djokovic.