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, with Nadal set to join Roger Federer and Andy Murray in retirement after the Davis Cup Finals.

Novak Djokovic holds the record for the most finals reached at ATP Masters 1000 tournaments, while the other members of the Big Four all make the top five of the list. The Serbian legend reached his 59th Masters 1000 championship match at the 2024 Shanghai Masters.