The moment is right to switch Man Utd's formation - Ruben Amorim states.

Head coach Ruben Amorim contends that altering Manchester United's tactical system due to external pressure would have meant "his demise" for him.

For the first time against Newcastle, Amorim abandoned his customary three-at-the-back setup with wide defenders and instead field an traditional back four shielded by two holding midfielders.

By his own admission this effectively became a six-man defensive block in the closing minutes as his squad held on for a crucial result - securing just their second-ever shutout of the season.

While he once notably remarked that not even the highest authority could pressure him to adjust his system, Amorim asserts the capacity to utilize varied setups has consistently been part of his strategy.

Nevertheless, he stresses he could only implement the change when his team were performing sufficiently well - or else it would appear as if he was bowing to outside criticism.

"At the time I came here last season, I realized maybe I lacked the squad to excel in a back three, but it was the beginning of a journey," he said.

"We were trying to build an identity. Today is a separate juncture. We lack a lot of players, and we need adapt, so they understand the reason we are changing.

"The change isn't because of the demands of the media, or the fans.

"Whenever media criticize altering the system repeatedly, I can't change because the squad will believe I'm altering things because of you and I believe that is a disaster for the coach.

"Once we are performing strongly in our system, that becomes the opportunity to change.

"We are going to grow into a more complete squad because when all the players return, we are not intending to employ a back three all the time."

Squad Issues Continue

With just two victories in their last eight outings prior to beating Newcastle, it is questionable whether Amorim is accurate to claim his side have been in good form.

He is, nonetheless, managing with a severely stretched squad, with multiple first-team stars already ruled out for the forthcoming fixture against struggling Wolverhampton Wanderers.

That total will increase if midfielder Mason Mount is unable to recover the knock that led to his withdrawal from the Newcastle game at half-time.

Captain Bruno Fernandes is a key name who will be absent for the Wolves match, despite the fact he is understood to be pushing his boss to allow him to make a comeback following his muscle problem.

"Bruno is already telling me he needs to train," revealed Amorim. "But there is no chance he is going to play against Wolves. Definitely not. That's definitive."

The Captain's Influence Endures

Nevertheless, the Portuguese star will likely still be a prominent presence, as whereas most unavailable stars view matches from a private box, Fernandes was seen keeping a close eye on the warm-ups from the mouth of the tunnel before the Newcastle game.

Amorim is sure his leader to continue providing guidance.

"The guy is a natural leader," he stated. "He cannot be the type of player that when he is absent, he's not talking and speaking. He's constantly vocal. That is the reason he's the skipper.

"He has negative aspects sometimes - his mannerisms he moves his arms - but he has a lot of strengths. Even after he recovers, he heads to watch the other guys practicing. There are a many things you don't see.

"I don't know if he desires my position or not, but he's a leader. The guy is a true captain."

Recovery Timeline for Key Players

Although the exact date for the captain's return - and that of fellow unavailable stars like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - remains unknown, by the end of January, United will welcome back Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from continental duty.