And cameras panned to Sir Alex when Salah completed his hat-trick, Liverpool’s fifth of the day, with fears that more goals were to come.
The United legend was spotted puffing out his cheeks, sporting a look of utter despair at the manner in which his former side had been turned over.
Sir Alex would have been like all other United fans watching on, wondering just how big the score line was going to be at full time.
Liverpool took their foot off the gas though, despite holding the extra-man advantage after Paul Pogba was sent off.
United were saved further embarassment but the damage had already been done with serious questions now being asked on whether Solskjaer can turn things around.