Mensik Stuns Sinner in Doha, Reaches Semi-Finals
Jakub Mensik delivered a stunning upset at the Qatar ExxonMobil Open on Thursday, defeating World No. 2 Jannik Sinner in the quarter-finals. The 20-year-old Czech player secured the victory with a score of 7-6(3), 2-6, 6-3, marking the biggest win of his career by Professional International Tennis Federation (PIF) ATP Ranking .
A Repeat of Upsets for Mensik in Doha
This isn’t the first time Mensik has caused a stir at the Qatar ExxonMobil Open. Two years prior, he achieved his maiden Top 5 victory against Andrey Rublev during a successful run to the championship match in Doha. This recent win against Sinner represents a latest peak in his young career.
Match Details and Sinner’s Recent Form
The match saw Mensik overcome a second-set dip in form to regain control in the deciding set. He attributed his success to a strong serve and mental fortitude, particularly after a crucial toilet break. Sinner’s defeat ended a remarkable streak of 22 wins in 23 matches, with his only previous loss in that span coming against Novak Djokovic in the Australian Open semi-finals last month.
Mensik’s Perspective on the Victory
“I don’t know, to be honest,” Mensik said after the match. “Before the match I knew about Jannik’s quality. A great guy, a great champion. Already what he has done in his young career, it’s pretty impressive, so I knew it was going to be a tough one. But even with that thought, I came to the match to win it, and actually having a winning mindset.” He also highlighted the importance of his serve and the mental battle throughout the match.
Looking Ahead: Semi-Final Matchup
Mensik will now face unseeded Frenchman Arthur Fils in the semi-finals, after Fils defeated Jiri Lehecka 6-3, 6-3. This will be Mensik’s opportunity to reach his fourth ATP final and his second in 2026, following his Auckland Open title last month.
Other Semi-Final: Alcaraz vs. Rublev
In the other semi-final, World No. 1 Carlos Alcaraz will compete against defending champion Andrey Rublev, both having secured victories in their respective quarter-final matches. Alcaraz has maintained a perfect 10-0 record in 2026.