Patrice Evra lashed out at a group of Manchester United legends and commentators, saying they were trying to "ruin" Michael Carrick's coaching career.
The French star singled out Paul Scholes, Gary Neville and Roy Keane, ruthlessly dismissing their judgings.
Previously, the three had said that Carrick should not be given a formal coaching position this summer, with Scholes recently saying that Manchester United under Carrick's rule performed "badly."
Evra, who won five Premier League titles with Manchester United, said that these people had failed to coach themselves and had no position to accuse others.
"I hope Scholes' post is fake, I hope his account has been stolen," Evra said on the show.
"To be honest, I'm not surprised that Scholes did this. He was the quietest player I've ever worked with in my career, but now in front of the media, he always speaks surprisingly."
"I really can't understand why no one supports Carrick. He is one of us and is doing a great job."
"Not only Scholes, but Keane and Neville are also making negative comments. This makes me very angry. We are working hard to reach the top four, and these remarks are completely unnecessary. But this is their routine for TV commentary. They can't say positive things and must sing the opposite."
"Most of them were fired soon after getting a coaching job. I told Neville: 'It's easy to talk on TV. When you were in Valencia, people wanted paella, but you served them fish and chips.'"
"People said goodbye to you after three months. People will not forget their performance as coaches. As players they are legends, but as coaches, their results are terrible. So why are they talking nonsense, and even possibly ruining a coach's career? This is too much."
The main reason for these three celebrities is that Carrick lacks coaching experience and cannot be the head coach of one of the biggest clubs in the world for a long time.
But 44-year-old Carrick has performed well since taking over from Ruben Amorim, winning 6 of 8 games.
On Wednesday, he lost to Newcastle for the first time in his coaching career, and Scholes immediately posted a scolding on Instagram late at night, and then hurriedly deleted it: "Carrick does have something... because Manchester United has performed terribly in the past four games... Good night."
Neville, Scholes and Keane all had short coaching careers. Neville coached only 28 games in Valencia, Scholes coached 7 games in Oldham and also had two brief transitions in Salford City, while Keane coached Sunderland and Ipswich, both experiences ended in disgrace.
Keane was clear from the start that he opposed Carrick's permanent position, and the Irish legend strongly opposed giving him a formal head coach position.
"It's only been two good games, anyone can win two games." Keane said on Sky Sports when Carrick first took over.
"Even if they eventually get fourth place, I don't think he's the right person, absolutely not."
"Manchester United needs a bigger, better coach. But he has the opportunity now, which is a great opportunity for him, and he has indeed seized it."
He added: "Even if Manchester United wins all the remaining games of the season, I will not give him a formal contract."
At the same time, Neville also suggested that Manchester United "look for another coach."
"I think Manchester United must now look for other coaches, because you cannot predict what future results will be." Neville said on Sky Sports last month before Manchester United's 1-0 victory over Everton.
"News like Tuchel renewing his contract with England is indeed reducing Manchester United's options, but this will not affect Carrick's chances of being permanent. If he can lead Manchester United to the Champions League, there will be a lot of support for him to be permanent."
"I am not against him being permanent. I like him very much and think he has done extremely well so far. I just think Manchester United should strive for the highest level of coaches."
"In the past two coach selections, they have selected young and inexperienced coaches, and the results have not been ideal. Solskjaer was also a celebrity and had good results in the first two years, but ultimately failed. So I think it is the right choice to reduce risks as much as possible."
"But those who know me know that this is not aimed at Carrick personally, I like him very much. He is a good person, a great player, and now he is doing a great job as a coach."
And Scholes recently said on "The Good, The Bad & The Football" podcast: "The most suitable person at the moment - I say the most suitable - Ancelotti is still idle. I know he is the coach of the Brazilian team... but he is the perfect person for Manchester United, and you will feel that he can allow the players to unleash all their strength."
"And he has the experience of winning championships. The only problem is, is he too old? Besides that, are there any people of the same level with more experience? The team needs a leader with charisma."