Nadal says Djokovic is one of the funniest guys on the circuit with his imitations of other players. The engaging Djokovic loves having fun but what stands out most is his single-minded determination to be number one.
"My goal is to be the number one player in the world and I will do everything to achieve it," Djokovic, who left the chaos of Belgrade as a 12 year old to train in Germany, said.
"I've got 10 years ahead of me and even if I don't I'll be happy because I know I dedicated my life to tennis and I got a lot in return.
"I'm a bit surprised that I've developed so fast. But I knew I had the quality and I deserve to be where I am because I've worked very hard for this."