The NFL should retire him before he dies or is incapacitated for good on the field.
Especially with his “fencing response”.
If the NFL rules he is retiring due to injury, he gets a big payout, the rest of guaranteed money plus part of future earnings. If he retires normally, he gets the balance of the guaranteed $132 million due under his contract. Either way, he gets a lot of money. I’d take the money and run, but most of these guys love playing so much they stick around as long as possible.