Originally Posted by Gene_Ness
whys its illeagle
I don't know for sure, but my best guess is that it is extremely hard to defend? I don't really know...but if you look on the UFC website on their Rules page, it says "small joint manipulation" is not allowed, and that's basically just what Aikido is. You catch a punch or grab their arm in the clinch, and twist their wrist (which I am guessing is considered a 'small joint', because I've NEVER seen someone use an Aikido move in the UFC) a certain way and you can submit them because otherwise you will just break their wrist, or arm, or fingers, or whatever you got a hold of. That's just my guess though, I don't see any other reason as to why small joint manipulation would be banned other than it's because it's so easy to break someone's bone like that.