The Reds were never at their fluent best against a Swansea side trying to protect an unbeaten home record in their first season in the top flight.
United took the honours in the first period but after the break concentrated on keeping the home side from grabbing a point. After being so impregnable at home this season it took a defensive mistake from the Welsh outfit to send them to their first home league defeat.
Ironically up to this game Swansea had kept five clean sheets in this season's top flight, the joint-highest total along with their opponents.
Referee: Mike Dean
Venue: Liberty Stadium Attendance: 20,295
Swansea scorers: Man Utd scorers: Hernandez 11
Yellow cards: Evra (MANU)