Manchester United's Champions League Return: Left-Back Gamble and Defensive Concerns
Manchester United’s long wait for Champions League football ends tonight – but an old problem threatens to crash the party before it even starts.
Three years after their last appearance in the competition, United return to Europe’s top table against Sabah FK, carrying the scars of that grim 2023 group-stage exit when Erik ten Hag’s side finished bottom. The landscape has changed since then: a 36-team league format, more games, more jeopardy. If Michael Carrick’s team find themselves anywhere near the bottom again, something will have gone badly, visibly wrong.
And the warning signs are already there on the teamsheet.
Left-back gamble comes home to roost
United chose not to strengthen at left-back in the summer. Tonight, that decision bites.
Luke Shaw did not train on Thursday. Carrick insisted there were no injury concerns, describing it as a rest day, but with the Manchester derby looming this weekend, the chances of Shaw being risked against Sabah are slim. With such a tight turnaround, resting him almost certainly means he sits this one out.
That leaves United scrambling.
Harry Amass trained on Wednesday, a nod to his growing status around the first team, but throwing him into a Champions League opener would be a huge call. Patrick Dorgu offers another option, yet his qualities make more sense higher up the pitch. So the most logical solution is a compromise: Noussair Mazraoui, a right-back by trade, shifting over to plug the gap on the left.
United have been here before – patching and improvising rather than planning and reinforcing. In a competition this unforgiving, that kind of short-term fix can quickly be exposed.
Defensive reshuffle on the cards
Behind the selection noise sits a simple truth: United’s defence has to be better.
Senne Lammens is set to start in goal, but it is the shape in front of him that will decide how calm or chaotic his night becomes. Diogo Dalot is likely to keep his place on the right, offering energy and width, but the real debate lies in the middle.
Leny Yoro is pushing to come in alongside Harry Maguire. Lisandro Martinez has looked rusty in recent outings, his usual sharpness dulled, and with City on the horizon, Carrick has every reason to pull him out of the firing line. Rest now, reset, and have him ready for the derby. That opens the door for Yoro to step into the Champions League spotlight.
If Carrick does go with Maguire and Yoro, flanked by Dalot and Mazraoui, it will be a back four that has rarely, if ever, played together in this configuration. For a team already accused of being too easy to play through, that is a risk. But the alternative – persisting with an off-form Martinez and a half-fit Shaw – is arguably bigger.
Mainoo, Tielemans and the brain of the team
Further forward, the picture is clearer.
Kobbie Mainoo will start. He has become the heartbeat of United’s midfield, the player who knits everything together. Youri Tielemans is expected to line up alongside him again, offering experience and passing range next to Mainoo’s composure and press resistance.
Ahead of them, there is no debate. Bruno Fernandes is the first name on Carrick’s teamsheet. He will operate in the advanced role, tasked with threading passes into the front line, dictating tempo, and dragging United up the pitch when the game threatens to drift.
If the back four looks patched up, the midfield at least carries the air of continuity and control. In a revamped Champions League format where every point matters, that stability in the middle could be decisive.
Attack managed with City in mind
Up front, selection is being shaped as much by Sunday as by tonight.
Benjamin Sesko’s minutes are being handled carefully, and starting him here would almost certainly rule him out of leading the line against Manchester City at the weekend. With that in mind, Carrick is expected to hold him back.
Matheus Cunha is ready to step in as the central striker. He will be supported from wide by Bryan Mbeumo and Marcus Rashford, a trio that carries pace, movement and enough threat to trouble Sabah without burning through Sesko’s legs before the derby.
It is a balancing act: respect the Champions League, but do not sabotage your chances in the domestic showpiece. United cannot afford to treat tonight lightly, yet they cannot ignore what is coming on Sunday either.
The return to Europe’s elite should feel like a celebration. Instead, it arrives with a familiar question hanging over it: in a season that demands depth and clarity, can United really afford to be improvising at left-back again?



