US Open: Jessica Pegula upsets Swiatek for first Grand Slam semis

NEW YORK — The questions wouldn’t stop for Jessica Pegula: Why was she 0-6 in Grand Slam quarterfinals heading into her U.S. Open matchup against No. 1 Iga Swiatek? What could Pegula do to change that? Came up during her on-court interview after winning in the previous round. And again at the news conference that