"He's a very tough guy," Texans coach Bill O'Brien said, via the Houston Chronicle. "You know, some of it can be concerning, but it's some of the design of the plays. That's what we do. He's got good physical strength. There's certain things that we do not want him to take a hit on. There's other things that we do that he loves to do, and we like to call them and that's part of the way he plays.