When he writhed around on the floor in agony for several minutes following his fall to the canvas I wonder if many ref's would have just waved the fight off then and there?

I just figured he had snapped his knee and if I was reffereeing would have stopped the fight immediately and got him urgent medical attention as watching it live I thought he was in incredible pain.

I've never seen a fighter make a meal of something like that other than a low blow.

It reminded me a bit of Anthony Bonsante when he was floored by Adonis Stevenson and lay sprawled out on the canvas with his eyes closed as if unconcious only to spring back to his feet on the count of 8 apparently fine. Unfortunately by that stage the ref had already waved the fight off.

How many of you guys thought when he went down it was a serious injury and that the fight was over? Had you been in charge, would you have just instinctively waved it off and got in the doctors immediately to attend to him and his apparent busted knee?