Jamie Carragher has suggested that Man United part-owner Sir Jim Ratcliffe will be questioning whether he made a mistake in appointing Ruben Amorim.
Amorim, 40, has endured a difficult start to life at Old Trafford since arriving from Sporting Lisbon in November, losing nine of his first 22 games in charge.
This has included United suffering defeats in five of their past six Premier League home matches to leave the club languishing in 15th place in the top flight and 14 points off the top four.
Amorim has been wedded to his preferred 3-4-3 system at Old Trafford, but he is yet to positively stamp his impact on United, although the Red Devils are in the fifth round of the FA Cup and automatically qualified for the Europa League last-16.