Leicester City star Riyad Mahrez was given the chance to bring his side level against Manchester City from the penalty spot and duly succeeded in converting from 12-yards.
However, as the Algerian celebrated with team-mates, referee Bobby Madley quickly brought them back down to earth by disallowing the goal and awarding Manchester City a free-kick.
So what happened?
Television replays revealed that Mahrez, who slipped as he went to strike, deflected the ball onto his standing leg, changing the ball's flight and allowing it to float past Willy Caballero.