It is a concern, and it's not just the NFL that's getting...

It is a concern, and it's not just the NFL that's getting bigger, America is getting bigger. We have an opportunity in our sport to protect those men because it's not just affecting you while you play, the true effects happen when you're retired. The guy who isn't out there participating in physical activity, burning calories, he's just going to be bigger, and we've seen it.