Two goals in stoppage time set the end game into overdrive for Ole Gunnar Solskjaer.
One scored by Joao Pedro, a shot driven low through the legs of David de Gea after Antony Martial had lost another challenge with a shrug.
The other a punt by Ben Foster, poorly defended by Nemanja Matic who ducked out of a header while deputising at centre half, and smashed in by Emmanuel Dennis.
Two goals to encapsulate the shambles that had gone before and turn a dreadful result into a total horror show.