Kobbie Mainoo's Career Revived by Michael Carrick at Manchester United
Nine months ago, Kobbie Mainoo was packing for Italy in his head. Now, Manchester United staff are talking about him as the present and the future of the club.
The 21-year-old midfielder burst through as a teenager under Erik ten Hag, but his rise stalled the moment Ruben Amorim walked through the door at Old Trafford. Under the Portuguese coach, Mainoo’s name disappeared from the teamsheet. He didn’t start a single one of the 21 Premier League games Amorim oversaw last season. For a highly rated academy graduate, that kind of exile usually has only one ending.
By January, Mainoo was on the brink. A mid-season move to Napoli was lined up as the reset button, a fresh start in Serie A where he would have linked up with Rasmus Hojlund and Scott McTominay. It was a serious option, not a vague rumour.
Then the axis of his career shifted.
Amorim was sacked, and Michael Carrick stepped in. The former United midfielder, now 45, immediately reshaped the side. Bruno Fernandes was pushed back into his natural role as a No. 10, and that tactical tweak opened a door in the double pivot. Carrick walked Mainoo straight through it, pairing him with Casemiro at the base of midfield.
The change was decisive. With trust and minutes, Mainoo’s form surged across the second half of the campaign. His performances were strong enough to earn him a place in Thomas Tuchel’s World Cup squad, even if he didn’t get on the pitch during the tournament and remained an unused substitute.
Inside Old Trafford, the mood around him transformed just as quickly. In a recent video update on his official YouTube channel, Fabrizio Romano reported that everyone at United is “delighted” with Mainoo. Club figures now see him not only as a key part of the current side but as a cornerstone for the years ahead.
Carrick’s influence in that turnaround is being talked about just as loudly. According to Romano, United officials “super appreciate” the manager’s role in reviving Mainoo’s trajectory. Without that appointment, the feeling is simple: the midfielder would already be in Italy, and United would be watching one of their best academy products develop in someone else’s colours.
Carrick, unlike Amorim, has leaned heavily into the club’s tradition of promoting youth. He has made a point of engaging with the academy, attending youth matches at Carrington whenever possible and keeping a close eye on the next wave. Mainoo stands as the clearest example of that philosophy paying off.
Right now, the 21-year-old is widely viewed inside the club as the standout product of recent years. The decision not to cash in when Napoli came calling looks, in hindsight, like a narrow escape.
Backed by Carrick’s trust and a fanbase that has quickly taken to him, Mainoo’s game is growing almost week by week. He has already become central to the manager’s plans, not a rotation option, not a prospect to be eased in gently.
At present he operates alongside Youri Tielemans, but the long-term vision is clear. United expect him to form a partnership with Carlos Baleba, another young midfielder whose profile is seen as a natural complement to Mainoo’s. If that pairing clicks quickly, both players could accelerate each other’s rise.
From the brink of a January exit to the heart of Manchester United’s rebuild, Mainoo’s story under Carrick is already one of the defining subplots of this new era. The only question now is just how high that ceiling goes.
