I don't follow the NFL very closely at all, but I did read what I thought was a pretty interesting book this summer.
Concussion, about Dr. Bennet Omalu, a board certified pathologist who, according to the book, was the first person to really shine the spotlight on CTE and the NFL when he examined Mike Webster's brain.
https://www.amazon.com/Concussion-Je...12987578&psc=1
In fairness, when I just googled it to get a link to the book, I see that Merril Hodge, one of Wesbster's own teammates, has written his own book,
Brainwashed: The Bad Science Behind CTE and the Plot to Destroy Football
I'm confident that on a board like ours, there are folks here who have the knowledge/expertise to do their own research into this situation. I'm certainly not qualified to dissect the truthfullness or accuracy of either, but I did find the book I ready pretty compelling. Didn't see the game or clip last night, don't need to. Sure hope Tua is okay, though.