He was able to walk from the pitch but doctors said that he collapsed again in the changing rooms and had to be given cardiac resuscitation before being taken to hospital where he remained on a life support system.

CNN: Sevilla star dies after collapse

Emergency-services experts say that in general odds of survival are reduced by 10% for every minute a person is collapsed from a sudden cardiac arrest without cardiopulmonary resuscitation or defibrillation.

WSJ: This Device Saves Lives, But Can Be Hard to Find