When Chris Smalling deflected a loose shot into the Manchester United net in Tuesday's game against Bournemouth, even a few of the home fans felt relaxed enough to let out an ironic cheer.
After all, the Red Devils were already leading by three goals and there were literally seconds left in injury time. In fact, the referee did not even let the game restart, opting to blow the final whistle straight after the ball hit the back of the net.
On the face of it, the goal was as meaningless as they come. But look a little closer and you will discover that it had huge repercussions for the Manchester United goalkeeper David de Gea and his Arsenal counterpart Petr Cech.
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Going into the game, which was delayed by two days after Sunday's infamous bomb scare, De Gea had 15 Premier League clean sheets to his name. Cech, who had completed a shut-out against Aston Villa at the weekend, was on 16.
As it stood, Cech was going to win the Premier League Golden Glove, awarded to the goalkeeper with the most clean sheets in a single campaign. All De Gea had to do was keep the ball out of his goal for 90 more minutes and he would have a share of the trophy.
And for 92 minutes he was doing very well until, once again, the Manchester United defence let him down. They went to sleep as the Bournemouth players launched a final attack, which eventually saw Max Gradel's shot deflected into the net.
That gave Cech the undisputed title and Arsenal fans did not hesitate to celebrate on Twitter. We've gathered some of the best reaction and embedded it below.
First of all, here is the goal:
And here is the reaction:
Of course, De Gea could still end his season with an FA Cup winner's medal which Cech most certainly cannot. Manchester United contest the final against Crystal Palace this Saturday and are favourites to lift the famous old trophy for the 12th time. That will put them joint with Arsenal as the most successful club in the competition.
However, that could well be the last thing that De Gea does as he has been strongly linked with a move to Real Madrid in the summer. The Spaniard was minutes away from becoming a Los Blancos Galactico last summer but the official papers were submitted two minutes after the window had shut.
Now, the La Liga outfit appear keen to right the wrongs and, according to reports, are convinced the 25-year-old still wants to move back to his hometown. After missing out on the Golden Glove thanks to a bumbling defence, he must that little bit closer to the exit door.