Troy Polamalu

I don't look at football as a violent, barbaric sport. It's a very spiritual sport, especially for someone facing the challenges during a game: the fear of failure, the fear of getting too big an ego, of making a mistake and everybody criticizing you.

Injury in general teaches you to appreciate every moment. I've had my share of injuries throughout my career. It's humbling. It gives you perspective. No matter how many times I've been hurt, I've learned from that injury and come back even more humble.