To be honest, I thought I had read that back when he had his run in over the jacket but after searching for it again, I did not see anything to this effect, so I retract that remark. (the comment may have been more about his "unwillingness" to play through his injury last season thank his effort in games) Certainly from the couple of times I've seen him play, along with the highlight video that is out there, he appears to go full speed and not give up from what I have seen.
He seems like a player who could make a serious impact, as long as his size does not have a negative effect on his play in the NFL.