Rafael Nadal, Novak Djokovic and Roger Federer have dominated tennis for almost two decades, but one former rival has explained what separates the Spaniard from his rivals

As Rafael Nadal's illustrious tennis career comes to an end in November, he has been reflecting on his 20-plus year career. When asked by Spanish magazine AS who his toughest rival has been, he wavered between Roger Federer and Novak Djokovic,

Rafael Nadal has tipped Novak Djokovic to have a ‘small mental breakdown’ before he officially retires from professional men’s tennis. Djokovic is the last player left standing from the Big Four era,