World number 1 Novak Djokovic claims winning titles and staying at the top of the tennis rankings is no longer a priority and he just wants to enjoy the sport. The Serb, who is considered to be one of the greatest players of all time currently has 12 Grand Slam titles to his name.

Since winning the Australian and French Open titles earlier in the year, Djokovic has struggled for form with injuries also hampering his performances on the court. He suffered a shock upset at the hands of Sam Querrey in the third round of the 2016 Wimbledon Championships, while also getting knocked out by Juan Martin del Potro in the first round of the 2016 Rio Olympic Games.

"I don't want to think about winning titles and being the number one any more in order to avoid putting pressure on myself. I put too much pressure on myself after winning this year's Roland Garros and I didn't like it, said Djokovic as quoted by tennis.com.

"I always enjoyed tennis and relished the game away from tournaments too but in the last few months, all the talk about making history has brought too much pressure. It doesn't mean I no longer want to contribute to the sport but I also don't want to keep on playing just for the sake of winning titles."

Djokovic had a brilliant year in 2015 where he was unstoppable, winning three out of the four major titles and ultimately completed a career Grand Slam after clinching his maiden French Open earlier this year, beating Great Britain's Andy Murray in the final.

The 29-year-old withdrew from the upcoming China Open, but has plans of returning to action in two weeks' time for the Shanghai Masters.