Alex de Minaur and Daria Kasatkina defy Australian exodus to reach US Open third round

De Minaur and Kasatkina keep hopes alive in New YorkFour other Australians crash out in second roundAlex de Minaur and Daria Kasatkina have expressed relief for different reasons after saving Australias blushes with contrasting second-round US Open victories in New York.As Alexei Popyrin, Adam Walton, Tristan Schoolkate and Maya Joint all crashed out, De Minaur hit the go button in a straight-sets victory over Japanese qualifier Shintaro Mochizuki.