Marcus Rashford needed something to chill up and take the necessary optimism to be ready for the next game.
This is seen as provocative by the United fans who see it as unprofessional and take it as a way to neglige the responsibilities at United. Rashford has chosen the pubs to release himself out of pressure in a dissent time for Manchester United.
His performance in the derby was not in the best level and the manager subbed him with Martial.
The manner in which Rashford chose to pass the stress of the defeat ignoring the Monday training gives all the indications to the coach to bench him in the next game. United is not the club of the punishments, but some club rules should be respected.