Time is optimal to alter Manchester United's formation - the manager declares.

Boss Ruben Amorim says that altering Man Utd's tactical system due to public pressure would have signaled "his demise" for him.

For the first time against Newcastle United, Amorim abandoned his customary back three formation with wing-backs and opted to use an orthodox four-man defense with two defensive midfielders.

He himself conceded this ultimately transformed into a back six in the closing minutes as his team dug in for a victory - securing only their second shutout of the campaign.

Although he once notably stated that even the Pope could compel him to adjust his system, Amorim maintains the capacity to play with varied setups has always been part of his plan.

Nevertheless, he stresses he could only implement the change when his team were faring at an acceptable level - lest it would seem as if he was giving in to outside pressure.

"When I came here the previous campaign, I understood perhaps I didn't possess the personnel to play well in that system, but it was the commencement of a process," he said.

"The goal was to establish an philosophy. Now is a separate juncture. We are missing a full complement of players, and we need adapt, so they understand why we are changing.

"It is not because of the demands of journalists, or the fans.

"Whenever media talk about changing the formation constantly, I can't change because the players will believe I'm changing because of you and I feel that is the end for the manager.

"Only when we are getting results in our preferred setup, then is the moment to adapt.

"We are going to develop into a more complete squad because when all the players return, we are not planning to employ three defenders exclusively."

Availability Issues Continue

Having just two victories in eight games prior to beating Newcastle, it is arguable whether Amorim is correct to say his side have been playing well.

He is, however, managing with a injury-ravaged roster, with multiple senior stars already ruled out for the upcoming fixture against struggling Wolverhampton Wanderers.

That figure will rise if midfielder Mason Mount is unable to recover the knock that forced his exit from the Newcastle game at the interval.

Captain Bruno Fernandes is a key name who will miss the Wolves match, even though he is understood to be urging his manager to allow him to make a comeback following his muscle problem.

"Fernandes is already insisting he has to train," said Amorim. "But there is no chance he is going to play against Wolves. No way. That's definitive."

Fernandes' Role Remains

However, the 31-year-old will almost certainly still be deeply engaged, as while most injured players watch matches from the stands, Fernandes was seen keeping a close eye on the pre-match routines from the mouth of the tunnel before the Newcastle game.

Amorim anticipates his captain to carry on offering guidance.

"The guy is a natural leader," he stated. "He must not be that guy that when he is absent, he's silent and offering advice. He's constantly speaking. That is the reason he's the skipper.

"He has bad things sometimes - his mannerisms he moves his arms - but he has a lot of good things. Even after he finishes treatment, he heads to watch the other guys training. There are a many aspects you don't see.

"I'm not sure if he wants my position or not, but he's a born leader. He is a leader."

Return Schedule for Injured Personnel

While the specific date for Fernandes' comeback - and that of fellow injured players like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - is uncertain, before the conclusion of January, the club will see the return of Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from international duty.