The head coach felt his team conceded at such bad times in the game, from a corner after only 91 seconds, and then twice in quick succession following the start of the second half.
Despite goals from Rasmus Hojlund and Bruno Fernandes, the Reds were unable to retrieve the situation and slipped to a second successive loss, on the back of the 2-0 reverse at Arsenal in midweek.
On a wretched, wet and windy night at Old Trafford, due to the effects of Storm Darragh, here is a selection of what the boss had to say to the official broadcasters, including MUTV.