Carrick's retirement could also been linked to a heart problem that the 36-year-old has been battling, with the midfielder claiming it flared up once again during a Carabao Cup match earlier this season.
"There comes a time when, you like it or you don't like it, your body tells you it's time to top playing football and that's pretty much where I'm at", Carrick said on Monday. That's pretty much where I'm at, which is fine.More news: Kirk Cousins likely to sign with Vikings
Carrick is to be offered a place on the manager's coaching staff but he would only say that is a "likely" option at the moment.
"Yes. It's kind of been sorted out", the midfielder stated whether he would be moving behind the scenes. We're still talking about it, to be honest, so there's nothing totally confirmed as yet.
"But, yeah, it's looking likely".
Obviously, the news has come as an upsetting incident for United fans, but won't be too anxious about a replacement for the 36-year-old with the current emergence of youngster Scott McTominay.More news: Key drivers of high USA healthcare spending identified
"I had a problem in the Burton game it started in the second half, had a few tests and the same problem came back on the Sunday of that week. There were 2 or 3 times when I wondered whether it was worth still playing, but I soon got over that". "I've been training hard and we'll see what happens for the rest of the season", said Carrick.
"So, I was determined to get back fit".
"With people like Scott (McTominay) and some of the younger boys, I'm just trying to help them adapt".More news: Green Bay Packers sign Mo Wilkerson: Free Agency Grade