Second-seeded Andrey Rublev has defeated fifth-seed Hubert Hurkacz in three sets on centre court at Dubai Tennis Stadium.
The night's first semi-final in the Dubai Duty Free Tennis Championships lasted 2h23m09s and finished with a 6-3 5-7 6-7 scoreline.
The Russian will play the winner of the second semi-final between Jiri Vesely and Denis Shapovalov.
Vesely booked his spot in last night's upset of the tournament.
The 123rd ranked Czech beat the world number one and top-seed Novak Djokovic 6-4 7-6 last night.


Hamilton fastest to complete Ferrari's US Grand Prix practice sweep
Gabriel shines at both ends as Arsenal ease past Everton to go level with Man City
Jackson double ends Man City's perfect run as Villa win
Varma leads India fightback in four-wicket victory over New Zealand
Holder Rybakina sets up Fernandez clash in Ningbo final
