Ruben Amorim is desperately fighting to save his job as Manchester United head coach.
Daily Mail Sport understands that the mood among the club hierarchy has changed since United were beaten at Brentford last weekend, and a number of players have lost faith in Amorim's ability to turn the season around.
The 40-year-old is under huge pressure as he prepares to face Sunderland at Old Trafford on Saturday when another defeat could stretch the patience of Sir Jim Ratcliffe and the Glazer family to breaking point.
Although firing Amorim before the end of this month would cost United £12million in compensation, sources acknowledge that the price of failure this season would be even greater if results don't improve.