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Roger Federer and Rafael Nadal form the all-time best rivalry in international tennis in the Open era.
Most of their matches have come on clay court, which has benefited Nadal, though to his credit, he has mastered Fedex on other surfaces also.
Nadal has a dominant record against Federer, even during the times when Federer was the undisputed king on the ATP tour.
They have played in every French Open and Wimbledon final between 2006 and 2008, shutting down the aspirations of all other players.
Their off-field friendship has been affected by the arguments of excessive play recently but that has not stopped a great rivalry from developing.
May they add to their existing records and entertain all of us!