(Reuters) – Novak Djokovic still feels inspired by Roger Federer and Rafa Nadal, the men’s world number one tennis player has said, adding that the rivalry between the so-called ‘Big Three’ is a great promotion for the sport.

The “GOAT” (greatest of all time) debate in men’s tennis has divided opinions in the last decade and still remains a hot topic as the triumvirate continue to dominate the field, sharing the last 13 Grand Slam titles among them.

Federer, who will be 39 in August, leads the race with 20 Grand Slam singles titles, with Spaniard Nadal close on his heels with 19.

Both of these guys are legends,” the Serb told Tennis Channel.

Djokovic has previously said he believes he will win the most Grand Slam titles and become the longest-reigning world number one by the time he retires.