West Ham have signed Senegal international El Hadji Malick Diouf on a long-term contract. The left-sided full-back or wing-back, 20, won the Czech top flight with Slavia Prague last season and will wear the number 12 shirt for the Hammers.

El Hadji Malick Diouf has become West Ham's second signing of the transfer window, after Jean-Clair Todibo's loan was made permanent.