The NFL could have every possible protocol in place to prevent concussions, but it won't matter unless players honestly police themselves.
That was Green Bay Packers quarterback Aaron Rodgers' perspective on concussion prevention, an issue plaguing the league. Rodgers spoke with sports personality Bill Simmons on his new HBO show "Any Given Wednesday with Bill Simmons," and the two-time MVP didn't shy away from the concussion topic.
""The biggest obstacle," Rodgers said, "I think would be the mind-set of players....They watch every player. There's one up in the booth, and we have a number of doctors on the sidelines watching concussions.