World No.1 Novak Djokovic followed in the footsteps of on-court rival, Rafael Nadal, to bow out of the Qatar ExxonMobil Open 2015 in Doha on Thursday.

The top-seeded Serb could not cope up with the barrage of big serves from Croatian giant, Ivo Karlovic, eventually going down 6-7, 7-6, 6-4 in the quarterfinal encounter.

“It was unbelievable,” Karlovic was quoted as saying by the ATP World Tour. “When I arrived here, I didn’t expect that one.

“He (Djokovic) wasn’t able to show his full range because it was windy. I just focused on my game and in the end I was a little luckier.”

QUARTERFINAL RESULTS – SINGLES

(7) I Karlovic d. (1) N Djokovic (6-7, 7-6, 6-4)

(4) David Ferrer d. D Brown (6-2, 6-2)

(3) T Berdych d. (6) R Gasquet (6-2, 6-1)

A Seppi d. I Dodig (7-5, 6-4)

SEMIFINAL RESULTS – DOUBLES

J Monaco/R Nadal d. (W) N Djokovic/F Krajinovic (7-6, 6-1)

J Knowle/P Oswald d. D Marrero/F Verdasco (7-6, 7-5)

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