There's been widespread concern that the $765 million concussion settlement between the NFL and 18,000 retired players would not be enough to cover all the injured players—concern that is now being
echoed by a federal judge:
U.S. District Judge Anita Brody has asked for more financial details from the parties, a week after players’ lawyers filed a lengthy payout plan. [...]
She says she is mostly concerned that not all retired players who are someday diagnosed with a related brain injury will be paid.
Sadly, it's a fair concern.