Roger Federer has insisted that he plans to continue his tennis career for several more years despite reducing the number of tournaments that he competes in.
The 31-year-old is taking part in just 14 tournaments this year, but says that he hopes his reduced schedule will prolong his playing career.
The 17-time Grand Slam champion told Sky Sports News: "I want to give myself the best chance to play as long as I can. Maybe then it will become clear that it is time to stop. You know things change very quickly, and you have to be ready and open about it.
"But I would like to give myself the chance to play for many years to come. I am happy with the way my body is. I am healthy and happy to be playing. And as for the No 1 ranking and Grand Slams, they are still really important to me.
"If I feel confident and am enjoying it i hope to play for a long time. I think I am playing excellent tennis. Some win Grand Slams at 16 and others at 34. It depends how you see things. The over-30 guys are extremely consistent. I think I can play good tennis not playing so much."
Federer is currently ranked second in the world.