Rafael Nadal and Roger Federer are considered two of the greatest players in the history of tennis, but they won't be grabbing a coffee anytime soon.

The intense rivalry between tennis icons Roger Federer and Rafael Nadal might have simmered down, but don't mistake that for a blossoming friendship. Even though Federer was quick to send his best wishes after Nadal announced his retirement following a Davis Cup defeat by the Netherlands recently,

Roger Federer's former coach Paul Annacone claimed that sports has never had a greater competitor than the retired Rafael Nadal.