Opinion: Manchester United’s Biggest Concern This Season May Not Be the Attack—It’s the Defence

As Manchester United prepare for another demanding campaign, much of the attention has been focused on new signings, midfield improvements, and attacking options. However, one issue continues to loom over Old Trafford, and it could prove to be the club’s biggest weakness this season—the centre-back department.

On paper, United have quality defenders. In reality, there are serious question marks surrounding nearly every option available.

Lisandro Martínez remains one of the club’s best defenders when fully fit. His aggression, leadership, and ability to play out from the back make him a key figure in the team. Unfortunately, recurring injuries have disrupted his momentum over the past few seasons. If those fitness issues continue, United may once again struggle to build a consistent defensive partnership.

Matthijs de Ligt is another player capable of leading the backline, but he has also dealt with injuries in recent years. While his quality is unquestionable, availability is just as important as ability. Manchester United cannot afford to rely on defenders who spend significant time on the treatment table.

Harry Maguire brings experience and aerial dominance, but at this stage of his career, concerns over fitness, recovery time, and consistency cannot be ignored. The demanding schedule of Premier League and European football may make it difficult for him to play every important match.

The future certainly looks bright with Leny Yoro. The young defender possesses enormous talent and has the potential to become one of Europe’s best centre-backs. However, expecting a teenager to shoulder the responsibility of leading Manchester United’s defence in his first full season would be unfair. Young players need time to develop, and mistakes are part of that process.

Ayden Heaven is another exciting prospect, but like Yoro, he is still learning his trade. Throwing inexperienced defenders into high-pressure matches against the Premier League’s best attackers carries obvious risks.

This leaves Manchester United in a delicate position. If injuries strike again, the club could quickly find itself short of reliable centre-back options. Defensive stability is often the foundation of a successful season, and without it, even the strongest attacking unit can struggle to compete consistently.

In my view, Manchester United should seriously consider adding another experienced centre-back before the transfer window closes. A dependable defender with leadership qualities would not only provide cover for injury-prone players but also ease the pressure on younger talents still finding their feet at the highest level.

The Red Devils have the quality to challenge for trophies this season, but unless they solve the uncertainty at the heart of the defence, their ambitions could once again be undermined by the same problem that has haunted them in recent years.