New York - Croatia's Donna Vekic saved a match point to advance to the US Open quarter-finals on Monday by defeating Germany's Julia Goerges 6-7 (5/7), 7-5, 6-3.

The victory sends the 23rd seed into a Wednesday quarter-final against Swiss 13th seed Belinda Bencic, who upset top-ranked defending champion Naomi Osaka in another fourth-round match.

US Open results on Monday (x denotes seeding):

Women

4th round

Belinda Bencic (SUI x13) bt Naomi Osaka (JPN x1) 7-5, 6-4

Donna Vekic (CRO x23) bt Julia Goerges (GER x26) 6-7 (5/7), 7-5, 6-3