Novak Djokovic says he is determined to start enjoying his tennis again after a tough few months for the world number one.

Djokovic wants his smile back

Djokovic wants his smile back

The Serbian star looked unstoppable at the start of the season when he managed to claim the first two Grand Slam events of the year in Australia and France.

However, injuries and fatigue have caught up with the 29-year-old, who looked out of sorts in his US Open final defeat to Swiss star Stanislas Wawrinka.

Djokovic has admitted it has been a tough spell but hopes to enjoy a successful end to the 2016 campaign.

He said: "To be honest I am looking forward to finding the freshness and peace of mind of enjoying sport and enjoying being on the tennis court.

"Somehow I lost it along the way after Paris and the French Open. I felt that over the last couple of months it was difficult for me to re-engage myself.”

He added: "But it's been another great season and it is not over. Now I am looking forward to Asia and competing again, hopefully healthy."