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 ...

Novak Djokovic suffered a massive upset at the Brisbane International on Friday. Competing in his first tournament since ...

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

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

Get the live streaming details, head-to-head, and preview of the Novak Djokovic vs Reilly Opelka, quarter-final match at the ...

Reilly Opelka kept it straight honest following his shock win over Novak Djokovic, admitting that he played freely and didn't ...