Manchester United have completed their midfield overhaul with the arrival of Carlos Baleba, but attention has swiftly turned to whether manager Michael Carrick will add defensive reinforcements before the transfer window shuts on 1 September 2026. The club's summer spending spree has reshaped their engine room, yet questions persist about squad depth in other areas, particularly at left-back where injury concerns and fixture congestion loom large.
Baleba's £70m transfer from Brighton caps a £155m midfield investment that also brought Andrey Santos (£48m from Chelsea) and Youri Tielemans (£35m from Aston Villa). Alongside England midfielder Kobbie Mainoo, United now possess a varied midfield with three players aged 22 or younger, addressing what the club identified as a priority after securing Champions League qualification following a two-year absence.
The intensity of expectation at Old Trafford means that even a single setback can trigger scrutiny. Manager Michael Carrick's composure was tested following the opening-weekend defeat at Hull, when Norwegian television presenter Jan Aage Fjortoft suggested a lack of passion in United's performance. Carrick responded firmly, dismissing the criticism as unreasonable given his understanding of the sport.
Can Luke Shaw stay fit for a full season?
The case for recruiting another left-back rests primarily on Shaw's recent injury history and the relentless fixture schedule ahead. The 31-year-old England international started all 38 Premier League matches in 2025-26 and has missed only one of United's past 44 league games—the final fixture of last season, four days after the Europa League final loss to Tottenham. He then travelled immediately on the post-season tour of Asia.
However, Shaw's record before that run was troubling. Between February 2024 and April 2025, he made three appearances for England while playing the same number of games for his club, and he missed three months at the start of the 2023-24 campaign due to calf and hamstring problems. There was a perception that former manager Erik ten Hag had accelerated his return from injury. The extended 40-game season allowed Shaw to prepare methodically, often with only one fixture per week or fewer.
That luxury will not be repeated. Although Manchester United face blank midweeks between their opening three matches, progression through two EFL Cup rounds would eliminate any full midweek without a fixture outside international breaks until the one containing Christmas Day. The combination of Shaw's fragile injury record and this congested calendar has created the conviction that another left-back will arrive.
Who are United's left-back targets?
Newcastle's Lewis Hall stands as the primary target. At 21, he fits the desired age profile and would provide genuine competition for Shaw while ensuring both players receive sufficient minutes across a demanding season. However, Newcastle have informed United that Hall is not for sale this summer, with the defender holding three years remaining on his contract.
Persuading Newcastle to part with Hall would demand an enormous offer. Yet United's leadership has repeatedly demonstrated this summer that they will not be held to ransom or overpay for targets. The question of available funds also looms. In published third-quarter financial accounts covering the period to 31 March, United disclosed £405.75m in outstanding transfer fees, of which £171.14m was due beyond one year. The club has yet to clarify how the additional $125m (£91.64m) borrowed during a refinancing announced in June will be deployed.
The £70m fee for Baleba—matching United's 2022 Casemiro purchase and exceeded in their history only by the £89m Paul Pogba deal—is believed to represent the upper limit of their midfield spending appetite. Recent reports indicate that Joaquin Seys and Alejandro Balde have also been linked alongside Hall in United's left-back search.
Alternative candidates exist. Racing Santander's 19-year-old Jorge Salinas carries a €16m (£13.7m) release clause, though Atletico Madrid also pursue him. United have held talks with Salinas's representatives, though no formal bid has been reported. Barcelona's Alejandro Balde, 22, was omitted from the club's 5-0 La Liga victory over Elche by coach Hansi Flick to "clear his mind" amid intense transfer speculation. Barcelona value the Spain international between €30m (£25.66m) and €40m (£34.22m).
With only a week remaining before the transfer window closes, the situation remains fluid. However, caution is being urged within United circles regarding expectations of a new left-back arrival. A significant player sale could alter the calculus, but Marcus Rashford's assignment of the number nine shirt has virtually ruled out his departure, and Manuel Ugarte's World Cup injury forced United to abandon plans for his exit.
Forward Joshua Zirkzee appears surplus to requirements after being an unused substitute at Hull, yet uncertainty surrounds Amad Diallo's fitness—the club has declined to clarify the extent of his injury amid reports suggesting a potential six-week absence—making it unclear whether Serie A interest will translate into a sale.
What alternatives exist without new signings?
Carrick possesses options at left-back without external recruitment. Diogo Dalot and Noussair Mazraoui have both operated on either flank previously. Baleba, a left-footed midfielder, played full-back for Brighton in the past. Harry Amass, 19, served as Shaw's backup during pre-season and remains at the club, though he was excluded from the Hull squad and is expected to depart either permanently or on loan.
Despite these internal alternatives, most observers anticipate another left-back will join United's ranks before the window closes. Yet nothing is guaranteed. The club's reluctance to overpay, combined with the unavailability of their primary target and financial constraints, means the left-back position could remain unresolved when the transfer deadline arrives on 1 September 2026.
What happens next?
United have less than a week to complete any left-back signing before the summer transfer window closes. Reports from 23 August indicated the club was still weighing alternatives should their main targets become unavailable, suggesting contingency planning is underway. The resolution of this position will significantly shape how Carrick manages his squad depth across what promises to be a demanding season.
