The Colombian full-back, who missed a glorious chance earlier to give the hosts a first-half lead, beat Nick Pope with a towering far-post header with just over 90 seconds of stoppage time left to play.

United weren't at their fluent best in South London, but looked to have the points in the bag until the 94th minute when Muñoz headed in a Guehi cross, with Nick Pope - who had had a superb game for the visitors - unable to keep it out in what was a bitterly disappointing finish for the Magpies.

In spite of their injury woes, Newcastle have been the better side so far. As things stand Opta's live win predictor suggests that the Magpies have a 42% chance of victory; Crystal Palace's chance of picking up three points is rated at 29%.