India, Oct. 29 -- Novak Djokovic has said he does not pay much attention to people asking him to retire from tennis, although he admits that the end of his career is approaching. The 39-year-old Serbian star says he still believes he can compete at the highest level and wants to enjoy playing for as long as possible.

Djokovic, who has won 24 Grand Slam singles titles, addressed the retirement talk in an interview with Serbian website Sportal. He was asked whether suggestions that he should leave the sport make him angry.

"Oh well, everything is there. As long as there are people, there will be speculation.

"It's in people's nature, and it's not only here, but everywhere. People like to criticise, to judge, with insufficient information...