Djokovic: "A lot of people told me it was better for me to retire at the top".

Novak Djokovic isn't satisfied. After a more than successful career, the Serb is still keen to shine in the big tournaments and has set his sights on a 25th career Grand Slam title.

He wasn't far off the mark at the Australian Open, but a torn hamstring forced him to retire during his semi-final against Alexander Zverev.

With the injury likely to keep him off the courts for at least two months, the Serb spoke to GQ Sports about retirement.

"I'm thinking about how I want to retire. But above all, when I want to stop. For the moment, it's not an obsession and I haven't really thought about it.

I feel that if I start losing with a bigger gap, if I start having more problems getting past the big hurdles at Grand Slams, then maybe I'll consider stopping.

But right now, I'm feeling good, so I'll keep going," says Djokovic.

"To be able to continue, I have to reduce the number of tournaments I play and concentrate only on certain ones.

I don't think I'll only play the Grand Slams and Davis Cup. I think I'll play at least one or two preparatory tournaments before the Grand Slams.

Both publicly and privately, a lot of people have told me that it's better for me to retire at the top, which I understand.

But if I still feel physically capable of continuing and if I feel I can beat the best players in the biggest tournaments, why would I want to stop now?