West Ham says it has signed Arsenal goalkeeper Manuel Almunia on a one-month emergency loan to replace the injured Robert Green.

The east London club, which is fourth in the second-tier League Championship, secured the services of the Spanish player after learning Green will be sidelined for six weeks with a knee injury.

The Hammers say the 34-year-old Almunia will be available for Saturday's game at Crystal Palace.

Almunia, who played in Arsenal's 2006 Champions League final loss to Barcelona, was not selected for any of Arsenal's games this season.