Safina follows Sharapova out of US Open

World number one Dinara Safina joined former champion Maria Sharapova as a third round casualty on a day of shocks at the US Open.

Russian Safina, still searching for a first grand slam win, was beaten by world number 70 Petra Kvitova of the Czech Republic after having been made to wait three hours to start her night match and then having the court switched.