[Steve Van Doorn]

"while trying to get back up, collapsed"
Then it wasn't Commotio cordis?
You think it might have been Cardiac tamponade? Which is a precondition of inflammation around the heart usually from an infection or damage.

In other words you believe an athlete with inflammation around the heart was allowed on the field?

said, "My patient was DOA"
I'm very sorry you experienced that.
I'm doing Ok and you? What do you do now? Still in the EMT business or something else?

[David Chase]

Pericardial Tamponade is usually caused by injury.

The cardiac sac around the heart fills with blood, hampering the heart’s ability to beat.

To be honest, if this football player was sitting in his chair reading a book, I wouldn’t be commenting right now until more information is available.

But the world witnessed the hit (mechanism of injury) to the chest (and location).