 The Colts won the NFL championship under his leadership on December 28, 1958, by defeating the New York Giants 23–17 in sudden death overtime on a touchdown by fullback Alan Ameche.It was the first overtime game in NFL history, and is often referred to as the "greatest game ever played".The game, nationally televised by NBC, has been credited for sparking the rise in popularity of professional football during the 1960s.