Serena Williams second on Ashe on Thursday

The order of play for day four of the US Open has been released as organisers struggle to cope with rain delays in New York.

Day three suffered from the weather meaning that many of the women's second-round matches were pushed back a day in an effort to cope with the pile-up.

As a result, play will start slightly earlier on day four at Flushing Meadows. Below is the order of play for the showcase courts.

Arthur Ashe: 3pm: Sara Errani vs. Flavia Pennetta Not before 5pm: Serena Williams vs. Galina Voskoboeva, Roger Federer vs. Carlos Berlocq 11pm: Caroline Wozniacki vs. Chanelle Scheepers, Rafael Nadal vs. Rogerio Sutra Silva

Louis Armstrong Stadium: 3pm: Angelique Kerber vs. Eugenie Bouchard, David Ferrer vs. Roberto Bautista, Victoria Azarenka vs. Aleksandra Wozniak Not before 9.30pm: John Isner vs. Gael Monfils

Grandstand: 3pm: Christina McHale vs. Elina Svitolina, Ana Ivanovic vs. Alexandra Dulgheru, Sam Querrey vs. Adrian Mannarino, Milos Raonic vs. Pablo Andujar