As football fans we've all been there.
Celebrating a goal when the ball actually went in to the side netting, wasn't on target or even worse - was ruled out for offside.
But imagine doing that when you're a professional footballer with millions of fans across the world watching your every move.
Manchester United goalkeeper David de Gea was mocked on social media after celebrating what he believed was an early goal from teammate Wayne Rooney — except the England man didn't score past Thibaut Courtois and actually put his shot wide.
Awkward!Read More »from David de Gea mistakenly celebrates Wayne Rooney shooting wide against Chelsea