Martínez's Investment Complaint Exposes United's Real Problem: The Dead Zone at Left-Back
Lisandro Martínez called for more signings after Manchester United's loss in Madrid, but the data points to one specific position United ignored all summer.
Manchester United's 2-0 defeat at Atlético Madrid on Tuesday extended their winless run to five games across all competitions, their longest such stretch since a six-game run without a win in January 2025, according to Opta data reported by The Analyst.
On its own, the result barely merits alarm. Atlético have recorded 15 home Champions League wins since the start of 2023-24, a tally bettered only by Arsenal and Bayern Munich on 16 apiece, per Opta's figures. United also had to see out the closing stages with ten men after Leny Yoro was sent off in what The Analyst described as a harsh decision.
United actually generated four Opta-defined 'big chances' — the metric Opta uses for openings a team would reasonably be expected to score from — and failed to convert any of them, while Atlético managed only two and won anyway. Away to a side of that calibre, with several first-team players missing to injury, defeat was not in itself the moment to declare a crisis.
What turned a contained setback into a story was Lisandro Martínez's post-match interview, in which the Argentine centre-back used his platform to criticise the club's recruitment rather than discuss the performance.
A complaint that lands awkwardly
"I have to control myself a lot," Martínez said, according to comments carried by Prime Video Sport and reported by The Analyst. "But sometimes it is the reflection, the mirror, for our club at the moment. A fantastic season last season, but now we are far from the top. We have to bring in more players to compete. Look at Atlético, they had an amazing team, they deserved to win."
He went further still. "I expect more, from everyone. More investment? Yes, 100%. I expect more from our technical director, I have to be honest," he said, adding separately that "Last season we created a base to build an amazing team."
The timing is awkward on two counts. Martínez started this very fixture behind a rebuilt midfield of Carlos Baleba, Youri Tielemans and Andrey Santos, a trio United paid a combined £155 million to assemble, having already spent heavily the previous summer on a new forward line of Bryan Mbeumo, Matheus Cunha and Benjamin Sesko. His own form has also dipped; he was beaten by Dominic Solanke for ten-man Tottenham's injury-time equaliser at Old Trafford only days earlier.
Yet the frustration clearly resonates beyond one dressing room. United played only 40 games in 2025-26 while still qualifying for the Champions League, a schedule many fans feel should have funded a fuller summer rebuild. United did move for several targets — Elliot Anderson, Sandro Tonali, Matheus Fernandes, Alex Scott, Aurélien Tchouaméni and Lewis Hall were all reportedly pursued and missed — but the business lacked conviction where it mattered most.
The left-back gap United refused to fill
The clearest failure sits in defence. Early-season injuries to Luke Shaw and Patrick Dorgu, the club's recognised options at left-back, left United fielding 20-year-old centre-back Ayden Heaven there in Madrid — his first senior appearance at the position and his first Champions League start of any kind.
Shaw's injury history made this an entirely foreseeable problem. He stayed fit for all of last season, but nothing in his record suggested he could be relied upon through a schedule including midweek European football, and United still entered the summer without a contingency plan.
The contrast with direct rivals is stark. Arsenal spent £50 million on Ezri Konsa once William Saliba was ruled out injured for the opening weeks of the season, even though they already held Cristhian Mosquera in reserve. United, facing a comparably obvious vulnerability, signed nobody to cover it.
Financial excuses do not hold up well either. United's net summer spend was lower than Ipswich, Spurs, Hull and Coventry, and only marginally ahead of Brentford's, despite the additional revenue a Champions League campaign should generate. Whether the club judged no suitable left-back existed, decided against reinforcing the position, or simply could not convince anyone to join, each explanation points to the same conclusion: a problem area was identified and left unaddressed while other clubs at the top of the table acted on comparable issues without hesitation.
Right-back and central defence carry their own questions too, though the left-back vacancy in Madrid was the most visible symptom of a summer that reinforced two already-strong attacking lines while leaving the back four to find its own solutions.
United now travel to Leeds on Sunday with Michael Carrick's long-term suitability for the job under renewed scrutiny. The performance in Madrid gave him some credit in difficult circumstances; the recruitment questions Martínez raised are aimed higher up the club, and they will not go away before the next transfer window opens.