US Open LIVE: Fourth round continues with Andreeva and Swiatek in early action

15:00 CET - Hello and welcome to our coverage of Day 9 at the US Open. We have another huge evening of tennis in store, with the final quarter-final berths set to be sewn up in New York.

Headlining the action on the men's side will be top seed Alexander Zverev, who takes on Luciano Darderi in the late game in Arthur Ashe Stadium.

Before that, we have some epic women's ties to enjoy, with Mirra Andreeva and Iga Swiatek in action early, before Elena Rybakina and Naomi Osaka meet in a blockbuster and Coco Gauff takes on Iva Jovic later on.

Check out the full program below, and get ready for the day ahead with a preview of the headline matches here!

Women's fourth round

Mirra Andreeva vs Anastasia Potapova - 17:00 CET

Iga Swiatek vs Qinwen Zheng - 17:30 CET

Naomi Osaka vs Elena Rybakina - 20:30 CET

Iva Jovic vs Coco Gauff - 01:00 CET

Men's fourth round

Francisco Cerundolo vs Alexander Blockx - 19:00 CET

Karen Khachanov vs Learner Tien - 22:00 CET

Arthur Gea vs Botic Van De Zandschulp - 22:30 CET

Alexander Zverev vs Luciano Darderi - 02:30 CET