Ruben Amorim has revealed Alejandro Garnacho will take his teammates out for dinner to apologise for disappearing straight down the tunnel after being substituted in Manchester United's Premier League win against Ipswich.

Patrick Dorgu's sending-off shortly before half-time on Wednesday led to a reshuffle, with Argentina international Garnacho, 20, heading immediately down the touchline after being replaced by defender Noussair Mazraoui.

Amorim said after the 3-2 win that he would speak to Garnacho, who took the initiative and came to see the United head coach on Thursday morning about the situation.

"He came to me," the United manager said on Friday. "It was funny because in the next day, he came to me, to my office.

"I did some investigations, and he went to the dressing room, he changed his clothes because he was wet.

"He watched the game in the different (place), not in the bench. In the end of the game, he was there, then he went home, so there's not an issue there.

"But I told them that in Manchester United everything is important, and the perception in a big club is really important, so he's going to pay a dinner to all the team, and that's it."

FA Cup holders United host fellow Premier League side Fulham in the fifth round of the competition on Sunday, desperate to stay on track for silverware this season.

Another hot topic at Friday's pre-match press conference was captain Bruno Fernandes after former United captain Roy Keane's scathing criticism on The Overlap podcast.

The former United midfielder said the Portugal midfielder's "talent is not enough" as he took aim at the current captain's leadership.

"I heard about that," Amorim said. "I have a different opinion. Bruno is really important for us in the club, especially for me.

"I know sometimes he does things as a captain, like with his arms and sometimes you see it like criticising teammates. I think most of all it's a lot of frustration for this year and the last year and the others.

"Everybody has an opinion. Roy Keane has big standards from him in his time and it's normal to have an opinion.

"I have an opposite opinion, and I think it's more important my opinion than Roy Keane because I am the coach and I think he is doing things quite well."