Doha: World No 1 Novak Djokovic was sent packing from the Qatar Open by Ivo Karlovic yesterday.

Novak Djokovic
Novak Djokovic 

The big-serving Croatian thrashed the Serbian 6-7 (2), 7-6 (6), 6-4 to move into the semi-finals where he will take on David Ferrer, who beat Dustin Brown of Germany 6-2, 6-2 yesterday.

On Tuesday, Spanish ace Rafael Nadal was ousted from the Qatar tournament after a 6-1, 3-6, 4-6 defeat to to Michael Berrer. This first round match was Nadal's first of the 2015 ATP World Tour and he appeared to have had insufficient time to recover from an appendectomy, and far too little match practice over the last two months.

Karlovic slammed 21 aces yesterday to his career total of 9,062. Earlier in the week, he had joined Goran Ivanisevic (10,183) and Andy Roddick (9,074) as the only players to serve more than 9,000 aces in a career.