World number one Novak Djokovic will clash with 123rd ranked player on the ATP Tour Jiri Vesely at Dubai Duty Free Tennis Championship today.
The quarters start with American Mackenzie McDonald up against second seed Andrey Rublev.
Fifth-seeded Pole Hubert Hurkacz will play fourth seed Jannik Sinner from Italy after that.
Tournament favourite Novak Djokovic will then take on qualifying Czech player Jiri Vesely in what's destined to be something of a David and Goliath showdown.
That will be followed by Lithuania's Ričardas Berankis and sixth-seeded Canadian Denis Shapovalov in the evening's late match.
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