Manchester United assistant coach Michael Carrick has publicly criticised what he describes as one of the most egregious refereeing rulings he has ever seen after Lisandro Martinez was shown a straight red card during United's 2-1 defeat to Leeds United. Carrick's comments were echoed by former Liverpool defender Jamie Carragher, who also expressed sympathy for the United manager and questioned the consistency of the decision.

The incident occurred when VAR flagged a brief contact between Martinez and Leeds striker Dominic Calvert-Lewin. In the heat of the moment, Martinez appeared to brush the back of Calvert-Lewin's hair, an action that the VAR officials interpreted as a hair pull. Referee Paul Tierney was then instructed to review the footage on the pitch-side monitor and, after a short deliberation, he sent Martinez off.

The Argentine defender now faces a three‑match suspension as a result of the dismissal. Carrick was visibly frustrated by the ruling, arguing that the contact was fleeting and unintentional. "It wasn't a pull, it wasn't a tug, it wasn't aggressive.

He just brushed it and got sent off. The worst part is that the decision was overturned as a clear and obvious error. It's shocking," Carrick told Sky Sports. He added that Martinez seemed bewildered as he left the field, noting that the defender had been engaged in a physical tussle with Calvert-Lewin at the time of the alleged hair pull.

The assistant coach also highlighted a pattern of controversial decisions affecting United in recent weeks. "That's two games in a row where decisions have gone against us, but this one was one of the worst I've seen," he said, referring to a previous incident in which United were denied a penalty after a clash involving Calvert-Lewin and defender Leny Yoro. Carrick felt that the failure to overturn that earlier incident compounded United's difficulties, as the team trailed 2-0 at halftime following a brace from Noah Okafor. The debate over Martinez's red card is part of a broader conversation about the enforcement of hair‑pulling rules in the Premier League.

Earlier this season, Everton defender Michael Keane received a red card for a similar alleged hair pull on Wolves forward Tolu Arokodare. The Premier League's 2025‑26 handbook, updated after several high‑profile incidents, states that a player will be sent off if they are "clearly pulling the hair of an opponent with force." Both Carragher and former United defender Gary Neville argued that the rule was being applied inconsistently.

On Monday Night Football, Carragher reflected on past cases, recalling an incident involving Marc Cucurella and Arsenal's Gabriel Martinelli, where the officials chose not to issue a card. He suggested that the current climate makes referees overly cautious: "From that period, it's like, 'Hang on, if someone does that it's a red card.' And that for me is 100 percent right if someone really pulls someone's hair. I think someone got sent off for pulling someone's hair.

But I thought the Michael Keane one wasn't a red card and I actually think this was softer." Carragher also pointed out that the decision often hinges on interpretation rather than a strict reading of the rulebook. "He's going for the ball, Calvert-Lewin's done nothing wrong, he's just put his arm out.

Martinez is almost grappling, he's just trying to grab onto something. It could've been his shirt, it could've been anything.

I think he's got it for about half a second. We've looked at the rule, and we all agree with that.

But Howard Webb comes out with a line on certain situations that I like – sometimes it's not just about the rule book, it's about what the game wants. I don't think any football fan, any player, any manager watching that thinks it's a red card.

Everybody in the game is looking at that and thinking it's not a red card, behave yourself." Gary Neville offered a contrasting perspective on the Gary Neville Podcast, arguing that the heightened scrutiny this season means players must be fully aware of the consequences of any hair‑pulling, however minor. "It's not the equivalent of spitting, but it goes into that type of category that it's something you just don't do, you know you get a red card for. It's a bit soft. It's a technical red card.

It's not violent conduct, but it's one of those things that as football players, you know you don't pull someone's hair. He was obviously going to get sent off the minute that it was spotted by VAR, so it is what it is – they go without him now for three games." The fallout from Martinez's dismissal has sparked discussion among fans, pundits, and officials about the balance between protecting player safety and maintaining the flow of the game. While the rule aims to deter deliberate hair‑pulling, critics argue that its current application may punish inadvertent contact that has little impact on the match. As the Premier League continues to refine its disciplinary guidelines, the Martinez case will likely be cited in future debates about consistency and fairness in officiating.

Regardless of the differing opinions, the incident underscores the challenges managers face when key players are unavailable due to disciplinary action. United will now have to cope without Martinez for the next three fixtures, a period that could prove pivotal in their pursuit of a higher league finish.

The club's coaching staff will need to adjust tactics, perhaps relying more heavily on other defensive options, while also addressing the broader issue of how to educate players on the nuances of the rule to avoid similar situations in the future. In the meantime, the Premier League continues to monitor the implementation of its updated handbook, with the hope that clearer guidance and consistent enforcement will reduce the number of contentious red cards and allow the focus to remain on the quality of the football on display.