Former Green Bay Packers quarterback Brett Favre discussed his documentary “Shocked: The Hidden Factor in the Sports Concussion Crisis.” (Video: Stadium)

Sometime on Saturday morning, Brett Favre will do a small favor for an old friend and former backup, stepping up to deliver a pep talk to Doug Pederson’s Eagles before Super Bowl LII.

But it’s the dangerous side of football that preoccupies Favre the most these days. “I cringe,” he said, “when I see video, or I’m driving and I see little kids out playing, and they’re all decked out in their football gear and the helmet looks like it’s three times bigger than they are. It’s kind of funny, but it’s not as funny now as it was years ago, because of what we know now. I just cringe seeing a fragile little boy get tackled and the people ooh and ahh and they just don’t know. Or they don’t care. It’s just so scary.”