Jack Draper and Jessica Pegula wear dejected expressions after their loss to Iga Swiatek and Casper Ruud in the semifinals of the U.S. Open mixed doubles tournament at Arthur

Jack Draper (R) and Jessica Pegula were knocked out in the semifinals. Elsa/. Jack Draper narrowly missed out on an appearance in the new-look US Open mixed doubles fi

Follow scores and live text updates from the US Open mixed doubles as Jack Draper and Jessica Pegula take on Mirra Andreeva and Daniil Medvedev in the quarter-finals.

The second semifinal between defending champions Sara Errani/Andrea Vavassori and the all-American, last-minute alternate pairing of Danielle Collins/Christian Harrison is underway, as they bid to join Świątek/Ruud in the mixed doubles finale.

Sara Errani and Andrea Vavassori weren't even sure they would get to defend their US Open mixed doubles title. Organizers revamped the tournament because they wanted singles superstars, not doubles specialists.

NEW YORK (Reuters) -Italians Sara Errani and Andrea Vavassori retained their mixed doubles title at the U.S. Open on Wednesday, overcoming Iga Swiatek and Casper Ruud 6-3 5-7 10-6 in the competition's reimagined format that drew some of the top singles players.