I kinda’ thought most folks were susceptible to concussion?
It does sound a little weird...not that I know anything about medicine.I think that this is more likely to come from the NFL's lawyers than from any prominent neurologist or neurosurgeon....the susceptibility part,at least.It's certainly possible that one or more "brain specialists" advised them to watch in future for evidence of subtle,or not-so-subtle,brain damage in players.