Top seed Novak Djokovic crashed out of the Brisbane International in a straight-set quarter-final defeat by Reilly Opelka.
Djokovic, chasing his 100th ATP title, went neck-and-neck with the American in the first set before Opelka eased to a 7-6, 6-3 victory in one hour and 40 minutes.
Opelka will now face France’s Giovanni Mpetshi Perricard, who beat Jakub Mensik 7-5, 7-6 to reach the semi-finals.
Meanwhile, 24-time Grand Slam winner Djokovic will shift his focus to winning a 11th Australian Open title under his new coach Andy Murray.
In the other Brisbane semi-final, defending champion Grigor Dimitrov, who received a walkover after Jordan Thompson retired hurt, will face Jiri Lehecka, who beat Nicolas Jarry 6-4, 6-4.
World number one Aryna Sabalenka reached the women’s singles semi-finals by defeating Marie Bouzkova 6-3, 6-4.
The top-seeded Belarusian will now face 17-year-old Mirra Andreeva, who beat former world number two Ons Jabeur 6-4, 7-6.
The duo last met at the 2024 French Open where the Russian teenager upset Sabalenka 6-7, 6-4, 6-4 to become the youngest player since Martina Hingis in 1997 to reach a Grand Slam semi-final.
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