Ruben Amorim's mum will have a strict rule for his Manchester United games ahead of beginning his role at the club.
Amorim has been appointed Man United manager, replacing Erik ten Hag, who was dismissed last week.
The Portuguese will officially take charge of the Red Devils after this month's international break, meaning he will lead his new side against Ipswich Town on November 24.
Amorim will be the club's youngest-ever manager in Premier League history, having only retired from his playing days back in 2017.
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The former midfielder, who was inspired by Zinedine Zidane and Fernando Redondo, has been described as 'highly competitive' and 'hates' losing.
That's according to Jose Morais, who was assistant to Jose Mourinho at Inter Milan, Real Madrid and Chelsea.
He also coached Amorim for four years.
Speaking to The Athletic, Morais also claims that Amorim's mum knows not to contact him until the day after a defeat.
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Man United have suffered several defeats this season, having lost four of their opening 10 Premier League games.
Ten Hag was relieved of his duties following the club's crushing defeat at West Ham United last month.
Amorim has been tasked with restoring Man United's glory days following the job he has done in Portugal.
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He made his name at Braga, impressing Sporting who swiftly appointed him as their manager in 2020.
The Portuguese coach has won two league titles with Sporting as he takes his first managerial gig outside of his home country.
Ruud van Nistelrooy, meanwhile, has been put in charge on an interim basis, having led the side against Leicester City in the Carabao Cup and Chelsea in the league
He's set to oversee Man United's games against PAOK and Leicester before the 39-year-old begins his era.
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Speaking after the 1-1 draw with Chelsea, Van Nistelrooy admitted a decision is still yet to be made on his future.
"Everyone at the club is focusing on the two games. After that we get behind him and work hard to make United better every day," he said.
"I think over the coming days and weeks everything will be talked about. I'm waiting for that. What's more important is tomorrow we're in again at Carrington."
Topics: Ruben Amorim, Zinedine Zidane, Football, Manchester United
Nasir Jabbar