Jose Mourinho has drawn his conclusions from the derby defeat against Pep Guardiola's Manchester City, and revealed which United star will start the next game, as well as which two players will be axed.
The Portuguese tactician has hailed youngster Marcus Rashford, who came on at half-time in the United's derby defeat against City.
"The next big game is against Feyenoord, and (Rashford) is going to play," Mourinho told Sky Sports.
"I trust him completely. I know his future will be absolutely brilliant.
"Some of the boys felt the dimension of the game, the focus and attention that comes with a derby.
"It has nothing to do with experience. Rashford came on in the second half and looked like he was playing for the U18s against Salford City.
"He gave us in the second half what we needed but didn't get from Miki or Jesse in the first half."
Mourinho also explained why Jesse Lingard and Henrikh Mkhitaryan are likely to start the next game, against Feyenoord in the Europa League on Thursday, from the bench.
"It is not to punish them. It is just that the only way I can decide my team is on performances. So, of course, I am going to play other players," he added
"Sometimes players disappoint managers. Is it their fault or mine? Well, it is my fault because I am the manager and it is my choice."
United lost the derby 2-1, but still sit in third position in Premier League, with nine points from four games – just one behind Chelsea and three behind Manchester City.
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