In the world of Tennis, the rivalry between Novak Djokovic and Roger Federer is one for the ages. The two greats have encountered at many venues and tournaments but the lesser known fact about them is that they were never really friends. In a recent interaction, the 22-time Grand Slam champion revealed his equation with Federer and said they were never friends and most likely never will be. Djoker’s words were shared by The Tennis Letter on their Twitter account. The post read,