European Cup/UEFA Champions League : 3 1967–68 , 1998–99 , 2007–08 UEFA Cup Winners' Cup : 1 1990–91 UEFA Super Cup : 1 1991 Worldwide Intercontinental Cup : 1 1999 FIFA Club World Cup : 1 2008 Doubles and Trebles Doubles : League and FA Cup : 3 1993–94 , 1995–96 ,