After falling out with manager Joaquín Caparrós, Scaloni joined Premier League side West Ham United on loan on 31 January 2006, the final day of the transfer window, in an attempt to increase his chance of selection for the upcoming World Cup. He took the number 2 shirt from the departed Tomáš Řepka, and made his league debut for the East Londoners against Sunderland, on 4 February; he also helped the team reach the FA Cup final, a penalty shootout loss to Liverpool.