The Serb easily advanced to the semifinals of the Olympic tournament by beating the Japanese home jumper Kei Nishikori 6-2, 6-0.

A "golden slam" in tennis means that a player wins all four grand slam tournaments and the Olympics in one year.

Djokovic has this year won the Australian Open, the French Championships and Wimbledon and after the Olympics the US Open remains.

Steffi Graf is so far the only one who has managed to win all the grand slam tournaments and the Olympics in one and the same season.

The now 52-year-old German did it in 1988.

Clip: Novak Djokovic took home the French Open (June 13)

Javascript is disabled

Javascript must be turned on to play video

Read more about browser support

The browser is not supported

SVT does not support playback in your browser.

We therefore recommend that you switch to another browser.

Read more about browser support

Novak Djokovic took home his 19th Grand Slam title.

Photo: Bildbyrån