A member of Manchester United 's first-team squad has allegedly complained he is 'half the player' under Louis van Gaal.
The Red Devils fired their fifth blank of the campaign against PSV on Wednesday night in a stalemate that left their Champions League hopes in the balance.
It is their fourth match in the last seven in which they have failed to find the back of the net, reports the Manchester Evening News.
Supporters have become so critical of Van Gaal that, for the fourth time this season, there was booing at Old Trafford over the team's style of play.
The discontent is supposedly shared by at least one member in the dressing room, too.
In pictures - Manchester United 0-0 PSV:
"I spoke to one player at United who told me he is half the player he can be here at the moment because of the way they are playing," the Daily Telegraph's deputy football correspondent Jason Burt told the BBC.
"He doesn't feel it is fair on him, he doesn't feel it's fair for the fans that he can't express himself properly and he finds it very difficult to play here."
Van Gaal claimed United, who require a win in Wolfsburg to qualify for the last 16, were 'afraid' to attack in the second-half of their goalless draw with PSV.
"We could have finished in the first half but also in the second-half," he said. "To the end we're not so good any more, we were afraid to play the ball but nevertheless do not give too much chances away.
"I cannot say every game in the interview with you that we didn't finish but it is the truth.
"It will be very difficult because Wolfsburg are the best team in our group to play against, but it is possible.
"We have won also at home and PSV has to win against Moscow, it is not so easy."