Mantra of Concentration VS Knockdowns

Which one wins? It seems kind of hard to imagine that you could cast a spell flat on your back, but hey.. apparently you can dodge like that. Does anyone have experience with this? I know it's a stance, I'm not talking about interrupting it and then KDing. I'm just talking about getting KDed while you have it on.

I don't think a Knockdown counts as an "Interupt". What I think they mean is Choking Gas, Interupting chop slice shot whatever, Incendiary arrows. Now Dwarven Battle Stance WOULD count as one, so would leech signet.

DBS-All hammer attacks interupt
Leech Signet-Disrupt current action, if it was a spell you gain X energy.

Okay, that makes sense. Thanks cookie monster.

<- Was stupid with writing, but you're welcome

Yeah, a knockdown breaks you out of whatever skill you were using and throws you on your back. It is different from an interrupt, which simply cancels a skill you were using.