It was two minutes that could define the Premier League season.
After Michail Antonio was adjudged to have handled Gabriel Martinelli's shot, Arsenal and Bukayo Saka had the chance to dampen a resurgent West Ham and put themselves 3-1 up.
Saka - fresh off scoring all four of his Premier League penalties for the Gunners, including two this season - had the chance to almost certainly guarantee Mikel Arteta's side another victory and put their lead at the top back to six points over Manchester City.
But the 21-year-old - who is in the running to be the Premier League player of the season after a fine campaign - remarkably put his penalty wide of Lukasz Fabianski's goal and the Hammers and their supporters were immediately lifted.