High Quality Content by WIKIPEDIA articles! The 2003–04 UEFA Champions League was the 12th season of UEFA`s premier European club football tournament, the UEFA Champions League, since its rebranding from the European Cup in 1992, and the 49th tournament overall. The competition was won by Portugal`s Porto, who defeated AS Monaco of the French Ligue 1 3–0 at the Arena AufSchalke in Gelsenkirchen, Germany for Portugal`s first win since 1987. This was Porto`s second European trophy in two years, following their UEFA Cup success from the previous season. This was the first UEFA Champions League competition to feature a 16-team knockout round instead of a second group stage.