Carrick: Performance against Watford proved time is right to retire
Carrick, who will join Jose Mourinho's backroom team from next season, was named captain and given a guard of honour for Sunday's final-day clash, and marked his 464th United appearance by lofting a wonderful ball over the top of the Watford defence for Juan Mata to tee up Marcus Rashford.
That proved the decisive moment in a largely low-key affair, with Carrick withdrawn to a standing ovation from the home fans five minutes from the end.
Speaking on the pitch after the game, Carrick said: "I would like to say thank you for your support over the years, I've got a lot of memories to cherish. It's the greatest club in the world and I thank you for your support for the last 12 years.
"I want to say a massive thank you to my family and friends. I'm grateful for everything you've done for me, thank you.
"It wasn't the best [performance] from me [today] but it tells me the time is right. I want to thank the manager for the opportunity, it's unbelievable for me. I look forward to learning and working closely with him.
Time to turn your sound up and listen to @Carras16's final words as an #MUFC player at Old Trafford... pic.twitter.com/LZPg8uZ2jF
— Manchester United (@ManUtd) May 13, 2018
"I'm sure he will teach me some things and we'll have some success in the near future I'm sure."
Carrick also paid tribute to United's legendary former manager Alex Ferguson, who is in recovery after suffering a brain haemorrhage last week.
"Lastly it's been a tough week for everyone at the club. Part of this family is Sir Alex and he's had a tough week this week, I would just like to say I'm sure he appreciates all the support you have given him.
"All our thoughts and prayers are with him and we wish him a speedy recovery.
"We want to see him sitting back up there [the directors' box] some time soon."