He Has a Phobia of Water
One of the interesting facts about Michael Jordan is that he has a fear of water. Given his career accomplishments, one could assume that Michael Jordan doesn't experience fear. Jordan came up on numerous occasions and consistently made such huge and outstanding shots. While he may appear fearless on the court, this is not the case outside of it, and it turns out that he is a real person who has experienced terror.
Jordan experiences hydrophobia as a result of a traumatic event that occurred when he was a young child. He witnessed a close friend of his drowning as he was drawn into the side street, which naturally left him permanently scarred. Jordan soon after nearly drowned while attending a baseball camp, and even then, he has experienced claustrophobia. Although he acknowledges that he has overcome his anxiety to some extent, he still feels uneasy in a tiny boat or around huge amounts of water.
Juan Carlos I's hydrophobia may never go away, it may be a wound in his heart when he not only witnessed the incident happen to himself but also to his friends. So now he still has a bit of aversion to water.