U.S. Open: Jessica Pegula beats Karolina Muchova; to face Aryna Sabalenka in her first Grand Slam final

Jessica Pegula has shrugged off a sluggish start and come back from a set and a break down at the U.S. Open to defeat Karolina Muchova 1-6, 6-4, 6-2 for a berth in her first Grand Slam final