Ruben Amorim has 'introduced non-negotiable rule' at Man Utd that all players must follow

Ruben Amorim has introduced some 'strict' rules to the dressing room during his first month in charge of Manchester United, according to a new report.

The 39-year-old, who was officially named United's head coach in early November, is renowned for his attention to detail.

In fact, after they suffered a 3-2 defeat to Nottingham Forest on Saturday night, Amorim mentioned details as he acknowledged the "long journey" ahead.

"We are improving in some aspects," he said. "We have to win games to help us improve the team. We are in the start of something so big that we pay attention to every detail."

In a bid to improve matters on the pitch, Amorim has already laid down some strict rules, according to ESPN, who suggest the Portuguese coach has banning food in the dressing room on matchdays.

Amorim has already emphasised the need to improve the physical fitness of his Manchester United squad.

Speaking ahead of their defeat to Forest last weekend, Amorim said it was "impossible" to win the Premier League without a team that doesn’t run.

"You can do a starting line-up with the best players on the planet, without running they also won’t win," he said. "We have to run like mad dogs, if not we won’t win.”

Amorim added: “The problem is can they cope with that? If they are used to it in training, they will do it in games. They can improve. You cannot be faster, but you can run more in training."

In the previously mentioned report, it also claims that Omar Berrada's interest in Amorim was driven by the connection he builds with his players.

Goncalo Gregorio, who played under Amorim on two separate occasions, recently opened up on what it was like to work under the former Benfica player during his time at Portuguese third-tier side Casa Pia.

"He was really demanding," Gregorio told SPORTbible. "Ruben wanted the best conditions for us to prepare; whether that was organising ice baths or doing more gym work to prevent injuries. He introduced physical tests that we didn't have beforehand."

Image credit: Getty

Gregorio also mentioned feeling "really confident" whilst playing under Amorim.

"His passion to work every day with a smile is infectious," he added. "Football can be an exhausting profession, and sometimes a player doesn't want to train or move. He won't have any of that. We all wanted to get up and give everything for him. He created a family."