The summer transfer window has closed and Manchester United head into the 2025-26 season without signing a specialist left-back — a decision that manager Michael Carrick and the club's hierarchy have made with eyes wide open.

Shaw as the cornerstone

Luke Shaw remains United's only orthodox senior left-back. Last season he started all 38 Premier League matches, a remarkable feat given his injury-prone history. Yet with backup Tyrell Malacia having departed on a free transfer when his contract expired in June, and with Shaw now 31, the prospect of him sustaining that workload across a campaign that could exceed 60 games is far from certain.

Several alternatives were pursued. Newcastle United's Lewis Hall, Barcelona's Alejandro Balde, and Racing Santander's Jorge Salinas were all identified as targets. Ultimately, a late approach for Rayan Ait-Nouri — a move that would have required an obligation-to-buy clause — was rebuffed by Manchester City. The window then closed.

Why Hall remains the long-term target

United's interest in Hall is genuine and enduring. The 22-year-old is highly regarded at Old Trafford, but Newcastle United — having lost several key players to Premier League rivals this summer — were unwilling to sell unless the fee was substantial. With United's transfer budget already committed elsewhere, including a £70 million deal to sign Carlos Baleba from Brighton, Hall was left as a priority target for the summer of 2026.

Balde was only available for a permanent transfer, which did not suit United's plans. Salinas attracted competition from Atletico Madrid. Argentine defender Nicolas Tagliafico was another option explored, but that avenue also closed before United could act decisively.

The Mazraoui and Yoro solutions

In the absence of a dedicated signing, United's plan centres on Noussair Mazraoui as cover for Shaw. Mazraoui does play at left-back for Morocco, and Diogo Dalot — capable of operating on either flank — provides additional flexibility. The other figure in this equation is Harry Amass, 19, a natural left-back from United's academy who impressed in pre-season. Despite interest from other clubs and his mysterious omission from a Premier League 2 fixture against Leicester, Amass ultimately did not leave on loan, though his precise role within Carrick's senior plans remains unclear.

Leny Yoro has also emerged as part of United's solution at right-back, freeing Mazraoui to shift to the left. Signed from Lille for £52 million in 2024 as a central defender, Yoro was deployed predominantly at right-back during pre-season and came on in that role against Ipswich. At 20, there is room to grow, and United supporters need only observe how Josko Gvardiol successfully converted to full-back at Manchester City after arriving as a centre-back to appreciate that such transitions can work.

The philosophy behind the gamble

United's refusal to panic-buy stems from a deliberate policy of not overspending on players judged to fall short of the required standard. The cautionary tales of Alex Telles, Matteo Darmian, and Sergio Reguilon — all signed as left-back options in recent years yet each failing to truly deliver — appear to have shaped this approach.

It is, by any measure, a calculated risk. Whether it proves to be a sound one will depend entirely on results — and on whether Shaw, Mazraoui, Yoro, and Amass can collectively cover a position that is now, at least until January, short of dedicated reinforcement.