Edinson Cavani came off the bench to score an equaliser for an out-of-sorts Manchester United and dash Newcastle's hopes of a priceless second win of the Premier League season.
The Uruguayan was introduced after an error-strewn and at times shambolically poor first half from the visitors, during which they conspired to partly gift Allan Saint-Maximin the opening goal.
Cavani immediately added greater threat to a blunt attack, side-footing one effort wide before finding the net at the third time of asking with a poked shot from inside the box.
It was cruel on Newcastle, who defended with determination and counter-attacked with intensity to produce their finest display of the campaign at a vociferous St James' Park.