Two-time defending champion Kim Clijsters has withdrawn from the US Open after failing to recover from a stomach muscle injury.

World number one Serena Williams has withdrawn from the 2010 US Open as she continues to recover from a cut to her right foot.

Andre Agassi got an extra day’s rest at the US Open as both the day and night sessions were cancelled due to bad weather.

Martina Hingis has asked for a wild card entry into the US Open.