More than an hour later, it was Barty heading abruptly for the exit, upset 1-6, 6-3, 6-2 Wednesday by 25th-seeded Karolina Muchova of the Czech Republic. Muchova earned her first semifinal berth ...

The U.S. Open women’s semifinal between American Coco Gauff and Karolina Muchova was delayed for nearly 50 minutes due to disruptive protesters — including one who glued his feet to the ground ...