It is understood the German is unpopular in the dressing room.
A source, who has a close connection to the United dressing room, revealed: “He is so unpopular, we don’t like him.”
Rangnick arrived with a reputation as an innovative coach, who helped shape the careers of Jurgen Klopp and Thomas Tuchel.
But it has been some years since Rangnick commanded a touchline.
From 2012, the German has worked as director of football for both Red Bull Salzburg and RB Leipzig, head of sport and development for Red Bull GmbH and finally manager of sports and development for Lokomotiv Moscow.
Rangnick will move into a consultancy role at the end of the season on a two-year consultancy role.
But first, he has to help the board make a new permanent manager hire ahead of the 2022/23 campaign.
As things stand the Red Devils are six points outside of the Champions League places, but have two games in hand over fourth-place West Ham.