Crystal Palace took the lead with four minutes on the clock, Maxence Lacroix adding to his UEFA Conference League goal in midweek to head the visitors in front from Brennan Johnson’s corner.
But the Frenchman turned from hero to villain for the Eagles as he fouled Matheus Cunha while through on goal, with referee Chris Kavanagh producing the red card after a VAR check.
Bruno Fernandes tucked home the penalty before turning provider just minutes later, with Benjamin Sesko continuing his red-hot form with a bullet header for the winner.
Here are five talking points from United’s 2-1 victory at Old Trafford, as the Reds leapfrog Aston Villa with another big three points.