Concussions happen. If not on every play, then they happen like every other, every third play, you know.

The team doctor, the team trainers, they work for the team. And I love 'em, you know. They're some good people, you know. They want to see you do good. But at the same time, they work for the team, you know. They're trying to do whatever they can to get you back on the field and make your team look good.

It's simple to get a concussion, you know. I don't know how many I've had over my career, you know, but I've definitely had my fair share.

Calvin Johnson Quotes