Super subs Marcus Rashford and Mason Greenwood scored late to send Manchester United through against Luton Town in the Carabao Cup.
How Manchester City were made to fight for their third successive Carabao Cup win by brave Aston Villa.
Nervous Manchester City qualified for the final of the Carabao Cup despite a 1-0 defeat to a Manchester United side who finished with 10-men in a tense encounter.
Manchester United gave themselves a glimmer of hope with a second half Marcus Rashford goal after they were blown away by a three goal salvo by Manchester City in the first half of their Manchester derby Carabao Cup semi final first leg at Old Trafford.
Three goals early in the second half saw Manchester United beat Colchester United and become the final club in the hat for the Carabao Cup semi finals.