Lukaku somehow found space to equalise
It had been coming. Manchester United levelled proceedings thanks to Romelu Lukaku, who found space through all the legs to beat Wayne Hennessey.
Jose Mourinho did not cut a happy figure on the touchline as his team conceded twice to go 2-0 down. Townsend opened the scoring in the first half and Van Aanholt beat De Gea shortly after the restart.
However, the United boss was far more pleased with the reaction from his players to pile pressure on Crystal Palace.
Chris Smalling headed home to reduce arrears and United began to twist the screw. With 15 minutes still to go, Alexis Sanchez's shot from the edge of the box deflected up and hit the bar.
Romelu Lukaku was first to react and took his time before firing a low shot into the net from 10 yards out.