Lionel Messi put on a masterclass in front of new recruit philippe coutinho as barcelona trounced celta vigo 5-0 to ease into the copa del rey quarter-finals 6-1 on aggregate. A weakened barca side previously drew the first leg 1-1 last week.
Messi grabbed the opening two goals in the 13th and 15th minutes, both finished with a sublime first touch with his left foot, both created by Jordi Alba.
Messi then returned the favour by setting up Alba to score past the hapless Sergio Alvarez in the Celta goal before Luis Suarez made it 4-0 on the night after 30 minutes when the Uruguayan burst through the defence.
Dembele did have time to set up the fifth goal of the night three minutes from the end when his corner was headed home from close range by an unmarked Ivan Rakitic.