Reigning champion and top seed Marin Cilic fell to Malek Jaziri in straight sets in his Istanbul opener.

Tunisia’s Malek Jaziri scores the biggest upset of the tournament knocking out the defending champion and top seed Marin Cilic in straight sets 6-4, 6-2 to reach the TEB BNP Paribas Istanbul Open quarter-finals.

Despite getting broken earlier in the set, world no. 78 Jaziri won five games in a row to race to a 5-2 lead. 2018 Australian Open runner-up Cilic tried to get back grabbing two consecutive games for 4-5, but Jaziri didn’t make any mistake in his second attempt to close out the set.

Jaziri, who’s playing this event for the very first time, put on another solid performance in the second set. He was the stronger side in most of the rallies while dropping just one point to Cilic on his first serve before grabbing an equal-best win of his career after in 70 minutes.

“I keep improving my game. This victory is very precious for my career and self-confidence. Everyone has a story, perhaps this year my story will be spoken” says Jaziri, who will next face the no. 7 seed Jiri Vesely or qualifier Thiego Monteiro.


Jaziri will face 7th seed Jiri Vesely in last eigth. Vesely, the only seeded winner of fourth day, overcame Brazilian qualifier Thiago Monteiro 6-2, 2-6, 7-6 in 2 hours and 28 minutes.

Czech number 84, who has a 2-0 career record against Jaziri, is the reigning doubles champion with his compatriot Roman Jebavy in TEB BNP Paribas Istanbul Open.