We’ve been mesmerized by the likes of Connors-McEnroe, Evert-Navratilova, Graf-Seles, Sampras-Agassi, Venus-Serena and Federer-Nadal over the last half century.

As each of these greats eventually leaves the game behind, who will emerge to create the next great rivalry in tennis?

Duos reliably meeting in matches with meaning have elevated tennis' profile significantly.