Barrie Jon Mather did dive. Right off the field to get away from whatever it was that smashed his face in.
It's a tragedy that this incident hasn't been uploaded to youtube. It would have got millions of views no problem. If there's been a better punch thrown in sport outside a boxing ring I've never seen it.
Poor Cas. That was a massive injustice that day. I would have sympathy for them, if only I could stop laughing.
At least the Cas fans didn't chase after the ref at the final whistle though.