Manchester United made it three wins from three in the International Champions Cup by beating European champions Barcelona 3-1 in California on Saturday.
Wayne Rooney, Jesse Lingard and Adnan Januzaj struck the decisive goals for Louis van Gaal's side in the Santa Clara heat, putting them top of the table in the friendly competition.
Rooney's well-placed header after eight minutes put United in front, and only the right arm of Marc-Andre ter Stegen stopped Ashley Young doubling their advantage.
Luis Suarez was denied an equaliser on the hour by the offside flag, and United rubbed salt in the Spanish champions' wounds when substitute Lingard doubled United's lead two minutes after coming on.
Rafinha was able to pull one back for the Catalan giants late on, but the Premier League side had the last word when Januzaj quickly added a third before the final whistle.