'"Not at all," Williams said. "I've got a hard hard. My family will tell you the same. It doesn't frighten me at all. Things happen. Concussions are freak accidents. Nobody goes into a game trying to give somebody a concussion or thinking they're going to get a concussion. It kind of just happens. Some are worse than others, some are not bad at all, some are terrible. I think it depends on the blow you take and the person that's actually taking the hit.'