Roy Keane has laid into Michael Carrick after completely disagreeing with 'everything' the caretaker manager said following Manchester United's 1-1 draw with Chelsea on Sunday.
Speaking after the game, Carrick said he was pleased with Manchester United's performance and his players' ability to execute the game plan they discussed prior to the fixture.
Carrick's comments sparked outrage from Keane - who launched an attack on the temporary boss and his players. The Irishman criticised the Manchester United players for failing to perform under Ole Gunnar Solskjaer and slated Carrick for praising them for 'doing their jobs'.
Keane also slated Carrick for suggesting that Chelsea should not have had a penalty despite that fact Aaron Wan-Bissaka thick through the back of Thiago Silva's foot to clear the ball from the United box.
Speaking after the game, Carrick said: 'I'm disappointed actually. When you are in front in a game like this to have it taken away is disappointing.
'I'm proud of the players and the group all week. An a difficult situation we tried to make the best of it. But there is that little bitter feeling. We came to win the game. A little disappointed, I can't lie.
'I don't think it was a penalty at all. They have had a lot of shots David had two saves which we knew before the game he would have to make one or two. Other than that I have felt quite comfortable in the game.
'Of course we want to be better. I am not getting carried away but I thought we defended well. I cannot fault the boys one bit.
'To come away disappointed and to feel like you have left something out there is a positive.'
Responding to Carrick's comments, Keane told Sky Sports: 'I disagree with everything he said in that interview. Everything he said.
'He's talking about a plan, he's talking about the penalty. Of course it's a penalty. We've all looked at it and it's a penalty.
'He's talking about effort and he's proud of them. He's been working with them for months under Ole. All of a sudden he's proud of them?
'Why aren't they making an effort in the other games? He's praising players for doing their jobs. It's ridiculous.'
Keane has also questioned why Carrick - who was was still an assistant coach under Solskjaer - was still employed by Manchester United.
Keane added: 'I wouldn't be one for getting rid of all the staff but they have to be held accountable, all the staff.
'They weren't just with Ole, they were with Mourinho as well before that, and what are they going to stay on with the new manager? [That's] not necessarily [right], not if they're not up to the job.
'Some of the staff have been here a number of years. I get the impression of Man United in the last few years, whether it be some of the backroom staff or people upstairs, I think there is an element now of a job for the boys now, 'a job for the boys, wink, wink, look after each other, know the right people'.
'That's why they're eighth or ninth in the league.'
Nevertheless, Keane did admit he was impressed by Manchester United's 'spirit' during the Premier League clash. Although, he did say Chelsea were the better side.
Speaking after the game, he told Sky Sports: 'Chelsea were by far the better team. They should've won but United were spirited and stuck at it, got a lot of blocks in, so they'll take some momentum after a good win in Europe.
'Hopefully they can kick on. '[There is a] Lot of changes. A new manager coming in, question marks over a few of the players but they stuck together and there was a spirit in the performance rather than real quality.
'Chelsea were always going to dominate so there's no surprise with the way the game panned out. We spoke about it and said there may be a bit of arrogance at the back which we saw for the goal. United stayed in the game, gave up plenty of chances.
'To say they played well, I don't think they played that well in midweek but have a couple positive results which you fall back on. What's happened today is no surprise they're lacking in confidence so you sit in bodies behind the ball and a bit of quality and pace which United will always cause problems.
'De Gea has played well recently and he speaks about fighting for everything but you should be doing that every week. It's as if they pick and choose their moments when they're up for it. The key for Man United is being consistent and doing it week in week out. There was spirit there but ultimately you want more.'