
Defending champions Sara Errani and Andrea Vavassori moved into Wednesday's semi-finals of the US Open's new look mixed doubles event after winning their last-16 and quarter-final matches without dropping a set.
They dispatched the second seeds Elena Rybakina and Taylor Fritz 4-2, 4-2 and then beat Karolina Muchova and Andrey Rublev 4-1, 5-4 on Tuesday at the Billie Jean King Tennis Centre in New York.