Swiss star Federer was the first of the trio to pick up a Major title when he won Wimbledon in 2003.
Nadal joined him two years later, when he beat Mariano Puerta to take home the first of his 14 titles at the French Open.
Djokovic finally won his first Grand Slam in 2008, taking down Frenchman Jo-Wilfried Tsonga in the Australian Open final.
All three players went on to win 20 or more Major titles and remain the only players in the history of the ATP Tour to have done so.
The debate rages on as to which of the three was the greatest, although one tennis legend claimed the statistics point to one player when he shared his thoughts two years ago.