World number one Novak Djokovic warned his rivals he is not done improving after winning Wimbledon for a third time.
Novak Djokovic insists he can find another level in his game after winning a ninth grand slam at Wimbledon.
World number one Djokovic successfully defended his title against Roger Federer on Sunday with a 7"6 (7-1), 6"7(10-12), 6"4, 6"3 win that marked his third success at the grass-court tournament.
Having become the first man to beat Rafael Nadal at the French Open and Federer at Wimbledon in the same year, Djokovic has further cemented himself as the best player on the planet.
And, with only the French Open required to complete a career Grand Slam, Djokovic has faced regular questioning over how he keeps himself motivated to stay at the top of the game.
Asked a similar question at his post-tournament media conference, Djokovic said: "As you go along and you realise your childhood dreams, I had to find new ways of motivating myself.
"Today I find it easy to motivate myself with the people around me. As a 28-year-old I feel like I have many years in front of me.
"The last five years I think I've improved a lot and each year I'm looking forward more and more to come to the grass and really challenge myself and see how I can go. I definitely rate now grass, along with hard court, as my most successful surface.
"There is always room for improvement. All the top players are very self-critical and they want to work harder than the other guy.
"That's always something that's in the back of your mind and gives you motivation. Specifically, I think I can improve in each shot a little bit, maybe my net play, come to the net a little bit more often, using the opportunities I create from the baseline.
"There's always something I can work on, I know I can get my game to a higher level and I always have tendency to do so with my team."
Pressed on the prospect of chasing down Nadal's tally of 14 grand slams and Federer's total of 17, Djokovic added: "I'm still far, far away from that. It's still a long way ahead.
"Winning one grand slam, it's a lot of effort, a lot of things have to come together. To reach these two guys would be something incredible but honestly I'm not thinking about it now."