NEW YORK -- Women's No. 1 Ashleigh Barty is out of the US Open.
Shelby Rogers took the first set and rallied from three points down in the third to upset Barty 6-2, 1-6, 7-6 (5) on Saturday night at Arthur Ashe Stadium to reach the fourth round.
Rogers had been 0-6 lifetime against top-seeded players.
Rogers, the last American left in the women's draw, was fantastic in the third, hitting backhand winners and using a 103 mph serve to fight her way back against the reigning Wimbledon champion.
Barty had not dropped a set in the tournament but was sloppy from the start.