Should Manchester United beat Ajax in the Europa League final they will complete a unique set of honours won.
The Red Devils will join the Dutch club, plus Juventus, Bayern Munich and Chelsea in winning all the main UEFA club competitions.
But United will eclipse all their English rivals, including Chelsea, by completing a clean sweep of domestic and international trophies.
The club's honours list would comprise triumphs in the English top flight, FA Cup, League Cup and Community Shield, as well as UEFA's Champions League/European Cup, Europa League, Super Cup and (now defunct) Cup Winners' Cup.