Ruben Amorim is battling to maintain the trust of his Manchester United squad following their derby humiliation.
United's 3-0 thrashing at Manchester City has intensified the scrutiny on Amorim, with the Portuguese manager now fighting for his position.
It is believed several of United 's experienced players have grown increasingly irritated and bewildered by Amorim's stubborn adherence to his tactical approach and formation.
Amorim's rigid formation and his unwillingness to consider alternative setups is said to have sparked significant unease among influential squad members.
Certain United stars are understood to believe Amorim is doing them a disservice by persistently demanding they operate within a system they are ill-suited to, reports the Mirror . Sky Sports discounted