Former Manchester United team-mates Paul Scholes and Robin van Persie locked horns following the Red Devils’ defeat to Istanbul Basaksehir.
United were shocked in Turkey with their hosts winning the Champions League clash 2-1.
Ole Gunnar Solskjaer’s side struggled throughout and did not create many chances at all.
And Van Persie, working as a BT Sport pundit, hit out at the lack of intensity and passion shown from the Red Devils.
Van Persie had said: "They missed the urgency to commit. In my time at Manchester United Sir Alex Ferguson said 'I don't mind losing as long as my team is not running less than the opponent and I want to see commitment going forward and as well defensively'.
"I'm pretty sure Basaksehir ran more than Manchester United. That should never be the case in any game.
“That has nothing to do with quality or abilities. That's extra. But you need to commit, to be there with 100 per cent focus."
Though Scholes hit back and criticised two United men, saying: "I don't really agree with the commitment side. I think there was an element of commitment. I just think the quality was so bad.
“The amount of times they gave the ball away, bad decisions, trying to beat a man. Paul Pogba when he came on, he was trying to beat a man, hold people off instead of passing the ball and keep it moving.
"The movement from the centre forwards was non-existent. Anthony Martial, the amount of times I looked up when a midfield player had the ball, he was just stood between the two centre-halves doing nothing.
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"It was just a real lack of quality. I'm trying to find a reason, excuse for it. But at the end of the day they were in good positions but the final bit of quality was really, really lacking."
United will hope to return to winning ways at the weekend as they face Everton in the Premier League.