Former Manchester United captain Roy Keane took a shot at Michael Carrick and warned that some players will have no future at the club after the Red Devils suffered a painful 2-0 Champions League defeat to Olympiacos.
Keane also claimed manager David Moyes would have been "shocked at the lack of quality" in the team he inherited from Sir Alex Ferguson last summer, and ridiculed the theory that the Premier League is the strongest in the world.
Speaking on ITV, Keane reacted sharply to a post-match interview from Carrick, who succeeded him in the United midfield in the mid-2000s, in which his demeanour appeared jolted by what he had experienced.
"That interview was just like the performance: flat. He should say a bit more, have a bit more urgency even in his interview," Keane said.
"That just reflected United's performance tonight: flat, with no urgency.
"They keep saying, 'Ah, well, next game, next game'. For some of them there won't be another game for them. That's the reality."
Carrick tried to put on a brave face afterwards, suggesting United can still progress when the last-16 tie moves to Manchester, but admitted the Greek side were in "a great position".
"It's hugely disappointing but we feel like we're still in with a chance going back to Old Trafford," he told Sky Sports 2.
"Obviously it's not going to be easy.
"We've lost a game we came here hoping to win and haven't done that.
"We're not out of tie by all means, but it's not ideal."
Asked what went wrong, Carrick added: "I'm not sure. We had good possesion in the first half. We had control of the game without penetrating their line, but at same time they weren't causuing us any problems.
"The goals came from nothing, but it obviously puts them in a great position.
"We didn't start the second half very well. A bit sloppy really."
Robin van Persie missed a glorious late chance to snatch an away goal, but Carrick did not want to aportion blame.
"You can't blame Robin; he's created his chance and nearly scored," he said.
"As players we have to stand up and take it on the chin.
"That's the business we're in. You take the good times and the bad times. We have to keep trying.
"You're looking for me to blame someone. As players we haven't been getting good results and as a club that's everyone involved. That's how we are judged."