Won his fifth Australian Open
Won his third Wimbledon title
Became the ninth player in history to spend 100 weeks at No. 1
Won Wimbledon, the Australian and US Open
Won his first tennis grand slam at the Australian Open
In 2010 Djokovic discovered he suffered from gluten intolerance and subsequently eliminated all gluten from his diet. He has since credited his gluten-free diet as to vastly improving his tennis game.
Djokovic's fun and lighthearted personality on the tennis court has earned him the nickname "Djoker."
"Hard work, commitment to the sport. It all starts with you at the end of the day because it's an individual sport. You need to be able to put in all these hours on the court and off the court, understanding what makes you better." – from www.CNN.com, March 24, 2015