Dogs are really good at reading human emotions. When a human is sick, their dog feels their pain and lays with them. When a human is happy, the dog shares in his joy. But in the case of this dog, he appears to not be following any human's lead when it comes to his emotions.
This pooch was following Portugal closely in the World Cup. When it was official that they had been eliminated, he showed his disappointment by turning his back on his team, laying down and sulking. Poor pooch!