"I am not training this week. I am going to jump on the staff", he said.
He is one of the best, he's been around for many years and it all fits in. He also won 34 England caps. "Special memories, things you cherish". This was the final chance to cut the cloth clean.
He will now link up with Mourinho's coaching staff, but Carrick will not be a like-for-like replacement for assistant boss Rui Faria, who has chose to step down after 17 years working alongside Mourinho.
Becoming a manager himself is something Carrick might want to pursue one day but that is not something he intends to push for yet.
"He's been around for many years".
'Moving forward I will organise my coaching staff in a way where the assistant manager figure doesn't exist.
Michael Carrick's absence on the field will no doubt be felt after he called time on his 12-year stint at the Manchester club.
"It was an unbelievable reception when I came off", Carrick said of Sunday's match. It's not an issue. I'm not getting carried away here.
Do great players make great managers?
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The twists and turns and all the storytelling shenanigans are merely fuel for the gags, but a pretty high-octane fuel at that. Julian Dennison's young mutant Russell is given a fairly simple arc, but the actor gets some solid chuckles, too.
Mourinho revealed after Saturday's 1-0 win over Watford that he has no plans to search for a successor to Faria, saying he would restructure his backroom staff instead.
'He's one of the best.
Thus, Jose Mourinho should be on notice, and you know he will be as Mourinho has already intimated the idea that Carrick could be his top lieutenant in the future. "I'm well aware of that", he said.
"The way it looked to me at the start of the season, is that Mourinho was playing to draw with all the big boys and beat all of the lesser teams".
Carrick - signed for £18m from Tottenham - joined the Red Devils seven months after Keane's departure. "I'm sure that will be the case again".
Victory in next week's FA Cup final would go a long way to pleasing United fans but they have a huge summer window on their hands and they need to get recruitment spot on.
Should Kroos prove unattainable, then Express Sport understands United are monitoring three other players.
According to The Telegraph, any move is dependant on whether or not Benfica sack current boss Rui Vitoria, who is under mounting pressure at the Lisbon club having lost the Portuguese league to Porto this season.