[Fansy the Famous Bard]

Originally Posted by COchief

Nah, concussion is caused by the brain hitting the skull. Think about where his brain was when he first got hit then the ensuing crack it took on the second hit. That is what caused it.

Originally Posted by stonedstooge

I'd say this is probably what happened. Referring to boxing again, many knockouts aren't the actual punch landing hard to the chin, but catching the tip of the chin and snapping the head will knock someone out just as quickly

There you go COchief.