Wimbledon finalist Ons Jabeur starts her US Open campaign against Colombian Camila Osorio later.
That match is at 4pm Irish time while this evening at 7 - third seed and local favourite Jessica Pegula takes on Camila Giorgi.
Andy Murray takes on Corentin Moutet of France in the men's singles at Flushing Meadows after 5.
Advertisement
At 5pm - third seed Alexander Zverev faces Attila Balazs