John Millman upsets 14th seed Fabio Fognini while Nick Kyrgios meets Roger Federer in a highly-anticipated third-round clash at the US Open after beating Pierre-Hugues Herbert.

Nick Kyrgios, Alex De Minaur, Matt Ebden, John Millman and Ajla Tomljanovic will shoot for the third round at the US Open on a bumper day's play on Thursday.

For the second straight year, Ash Barty has advanced to the last 32 at the US Open, where she could face two-time Grand Slam champion Garbine Muguruza.

Jason Kubler suffers injury heartbreak at the US Open while Daria Gavrilova proves no match for a resurgent Victoria Azarenka.

Daria Gavrilova faces Victoria Azarenka, Ash Barty takes on Lucie Safarova and Jason Kubler tackles Taylor Fritz on day three of the US Open.

Ajla Tomljanovic gets the better of fellow Queenslander Lizette Cabrera to advance to the second round of the US Open.

Sam Stosur is beaten by world No.2 Caroline Wozniacki on a day of punishing heat at the US Open.

John Millman makes swift progress against qualifier Jenson Brooksby while Matt Ebden advanced via retirement on a punishingly hot day at the US Open.

Sam Stosur plays No.2 seed Caroline Wozniacki on Ashe while Nick Kyrgios faces Radu Albot under lights at the new Armstrong stadium.

Ash Barty drops just four games against Ons Jabeur and Daria Gavrilova thrashes Spain's Sara Sorribes Tormo on day one of the US Open.