Deadline for ex-NFL players to receive brain injury compensation

New York Jets' Wayne Chrebet's career ended with this Nov. 6, 2005 concussion. (AP/Tim Larsen)

Former NFL players have until tomorrow to register for up to $5 million in compensation for brain injuries resulting from concussions in the game. Some $100 million in payouts have already been approved, and they could exceed $1 billion in all.

This is a big deal: An outsized 18,400 out of the roughly 21,000 retired players have already registered (which is done here).