VIDEO: New footage emerges of Djokovic's first tennis lesson

Novak Djokovic started playing tennis at age four and it was the beginning of what might just end up being the greatest tennis career of all time.

Djokovic confirmed his status as the best in the men's game by going undefeated at the ATP Finals beating Ruud in the final. He didn't finish number one but he also missed more than half of the season so ending up in the top 5 is a great result in itself.

He also finished as the top earner this year earning nearly 10 million dollars this season alone in prize money. But all of it started many years ago in his native Serbian and if you wonder what that looked like, don't worry cause we got it for you.

Check it out below.