Fletcher was furious about the referee's decision to force Matthijs De Ligt off the field due to a bloody head injury.
Manchester United coach Darren Fletcher could be facing an FA charge in the coming weeks.AdvertisementAdvertisementUnited conceded from a corner before half time, when De Ligt had been off the field.
Referee Samuel Barrott appeared to stick with the rules regarding De Ligt needing to go off for bandaging.
United boss Erik ten Hag and his assistant Ruud van Nistelrooy were given yellow cards.