'"I’m not concerned at all," the Buffalo Bills' receiver said. "I’ve played this game more than half my life. I understand there’s a 100-percent injury rate. A lot of people who play it are going to suffer head trauma or a head injury at some point. I just don’t really worry about it. I pray about the things that I have in life, wake up thankful I’m able bodied and leave the rest up to God. I don’t really focus on that aspect of the game."'