Stosur knocked out of US Open

Samantha Stosur is out of the US Open after suffering a straight-sets fourth-round loss to Flavia Pennetta.

The Gold Coaster just couldn’t get over her career-long nemesis, losing 6-4 6-4 this morning.

Stosur has never been able to beat the Italian in the 7 times they have met.

Pennetta, seeded 26th, will now play either Czech fifth seed Petra Kvitova or Sydney-born Brit Johanna Konta on Wednesday for a spot in the last four.

There are now no more Australians left in either the men or women’s singles draws.