Manchester United's victory over Liverpool has been cast as the beginning of the Erik ten Hag era.
It may just be one game, but the Red Devils played with a spirit that reminded supporters of past glories. Of course, it was not just the performance that was significant.
Ten Hag made huge calls before kick off, dropping Harry Maguire, Ronaldo and Luke Shaw, adopting a different, more direct style that was based on running, pace and counter attacks.
Now United head to Southampton for the lunchtime kick off on Saturday, desperate to prove their victory on Monday was not just a flash in the pan.