India, March 14 -- Rafael Nadal announced his retirement last year, drawing curtains to a glittering career which also saw him 22 major titles (including a record 14 French Open titles). Nadal's departure from the ATP circuit also saw Novak Djokovic being left alone as the only active member of the Big Three.

The Spaniard recently appeared on Andy Roddick's YouTube podcast, where he weighed in on his Big Three rivalries with Roger Federer and Novak Djokovic.

Nadal's rivalry has gone down the annals of history as one of the best in sports folklore. Explaining why it was more attractive than his rivalry with Djokovic, Nadal said, "In my opinion that's why the rivalry with Roger was a little bit more attractive for the fans, than Novak aga...