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

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

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 ...

Former world number one Novak Djokovic's Australian Open preparations suffered a blow Friday as he was bundled out of the ...

Top seed Novak Djokovic is out of the Brisbane International, beaten 7-6 (8-6) 6-3 in the quarter-finals by Reilly Opelka.

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

Here's what Reilly Opelka told Novak Djokovic at the net after his stunning upset win vs. the World No. 7 at the Brisbane ...

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 's preparations for the Australian Open have been rocked after he suffered a shock loss to Riley Opelka at the ...