Novak Djokovic of Serbia kisses the champion trophy during the awarding ceremony for the men's singles final at the 2016 French Open tennis tournament in Paris, capital of France, on June 5, 2016. Djokovic claimed the title of the event after beating Andy Murray of Britain in the final 3-1. (Xinhua/Ye Pingfan)

Novak Djokovic of Serbia lifts the champion trophy during the awarding ceremony for the men's singles final at the 2016 French Open tennis tournament in Paris, capital of France, on June 5, 2016. Djokovic claimed the title of the event after beating Andy Murray of Britain in the final 3-1. (Xinhua/Ye Pingfan)

Novak Djokovic of Serbia poses for photos with the champion trophy during the awarding ceremony for the men's singles final at the 2016 French Open tennis tournament in Paris, capital of France, on June 5, 2016. Djokovic claimed the title of the event after beating Andy Murray of Britain in the final 3-1. (Xinhua/Ye Pingfan)