World no.1 Ash Barty out of US Open after shock loss to Shelby Rogers

Shelby Rogers dumped Ash Barty out of the US Open (Frank Franklin II/AP)

World number one Ash Barty crashed out of the US Open in the third round after Shelby Rogers mounted a superb comeback.

The Australian overcame a tricky start to put herself on the brink of victory as she served at 5-2 up in the deciding set.