Perry did ok in first spell but his downfall was giving three penaltys away on the bounce
What were the penalties for? Holding down?
Perry is very good a dominating in the tackle and getting the opposition on thier backs, (generally) holding them down just long enough to slow them down without getting pinged. However, if the ref was "setting his stall out" for the game, he may have taken exception to this in order to force a quicker PTB.