Now the ex-Toon keeper is calling for his former club to notch up another against Jose Mourinho’s side to ease their relegation worries.
The omens are not good. The Magpies’ record against the elite this season is, to be brutally frank, pathetic, with just one point out of a possible 21.
And St James’ Park, once a fiercely partisan fortress where even the best could come unstuck, has been open house for recent opponents.
Newcastle haven’t beaten top flight opposition there since October 21 when a 90th-minute winner denied Crystal Palace their first point on the road this season.
Harper is desperate for the Geordies to turn back the clock to the days when United invariably headed home battered, bruised and beaten.
“It’s always a special game because of the historical significance of the fixture,” said the 41-year-old, who spent two decades at Newcastle.