In the 35th minute of the FA Cup tie at Stamford Bridge, following Ander Herrera's sending off, several United players surrounded referee Michael Oliver in protest to his decision.
The FA had made it clear earlier this week that measures would be taken, and they have confirmed that the club have been fined £20,000 for 'failing to control their players'.
Following their misconduct charge earlier this week, @ManUtd have been fined: https://t.co/XRb8SYXEtj
— The FA (@FA) 17 de marzo de 2017