As the last great manager of the once-proud team that now masquerades as Manchester United said, now it really is squeaky bum time.
This was not just another humiliation of old enemies who no longer occupy the same footballing space as Liverpool, this was an emphatic message to Manchester City and Pep Guardiola.
The City manager said he would be watching events at Anfield avidly and what he saw must have worried him. What he saw was the exciting Luis Diaz, scorer of the first, terrifying United’s back line.