BRUNO FERNANDES slammed his own fans for their treatment of team-mate Joshua Zirkzee against Newcastle.
The forward was heavily booed at Old Trafford before his 33rd minute substitution was greeted by cheers.
Zirkzee headed straight down the tunnel before returning to the bench, with some reports claiming he became tearful.
Fernandes watched the affair play out from the bench too due to his suspension, and he revealed the fans' attitude annoyed him.
The United captain told talkSPORT: "I was in the stands and I've never seen something like this.
"And it really frustrates me and annoys me because he's a player that always gives it his all.
"As a player that is coming into the team from a different league, he needs time to adapt but, he has huge qualities.
"He hasn't shown all the quality but it can't be that from the first game of the season everyone was hyping him as one of the best strikers and now everyone does not believe in him anymore.
"We do believe in him inside the dressing room.
"I would rather be myself in this position against Newcastle and not seeing one of my team-mates in that position."
Zirkzee has since been tipped to leave United on loan this month amid interest from Juventus and Napoli.
But he made a cameo appearance against Liverpool at the weekend and produced what should have been an assist for Harry Maguire, who blazed over from close range.
