I like the way they say that Gaff is the least likely player to do such a thing. But if you take both teams, I reckon the least likely player to ever do anything like this is Mundy. A tough player who never takes cheap shots. And then we have our hotheads, like Ballas and Sonson , but they don't set out to injure players, just to give them pause for thought.
For my sins I've watched the Eagles a lot, and when the chance to injure an opponent appears they take it. Whether its a latish bump, or a knee/ankle twisting tackley - they do it.