Aryna Sabalenka prevented an all-American US Open final, recovering from a 6-0 5-3 deficit to beat Madison Keys and join Coco Gauff in the title match.
First semifinal: Coco Gauff beat Karolina Muchova 6-4 7-5
Coco Gauff reached her first US Open semifinal with a gutsy 6-4 7-5 win over Karolina Muchova in a match interrupted by protesters for 49 minutes.
Numerous errors by Muchova helped Gauff race to a 5-1 lead in the first set, but once the Czech found her composure, she rallied back to 5-4. Yet, a subpar service game from the tenth seed handed the first set to Gauff, and environmental activists disrupted the match shortly afterwards.