Over his legendary tennis career, it has always been foolish to write off 24-time Grand Slam title winner Novak Djokovic.

Novak Djokovic was beaten 7-6 (6), 6-3 by big-serving Reilly Opelka in the Brisbane International quarterfinals on Friday.

Novak Djokovic's hunt for a landmark 100th ATP title ended with a whimper following an unexpected 7-6(6) 6-3 defeat by ...

Djokovic is in search of his 25th Grand Slam title at the Australian Open, but fell short of the semifinals at his warm-up ...

Recap, quotes, and highlights from Reilly Opelka's upset victory over Novak Djokovic in the Brisbane International.

Thus, Djokovic experienced his worst defeat in terms of the opponent's ranking since the retirement against Filip Krajinovic ...

The 24-time Grand Slam champion lost fairly handily to 6-foot-11 American Reilly Opelka, 7-6 (6), 6-3, in the quarterfinals ...

Novak Djokovic has sent a message to former coach Goran Ivanisevic, with whom he parted ways in March last year after nearly ...

Novak Djokovic sent a brief message to his opponent after crashing out of the Brisbane International. Reilly Opelka pulled ...

Nick Kyrgios has reignited the debate on revenue sharing in the world of tennis. A very sensitive topic that always generates ...