Everything falls apart. Dreams, hopes and even football teams. Knowing this doesn't make it easier. Consider how Manchester United fans feel about the departure of Sir Alex Ferguson - they yearn for him still, especially now as they subsist on Jose Mourinho's tooth-breaking fare.
No exit is felt more keenly, however, than that of a star player. Age, a better offer, or a change of coach. They all feed into the decisions that leave supporters heartbroken.
Here are five of the most tragic exits from the Premier League this summer.