Wow very interesting! I usually trap the arm when they try to sweep me, but i never thought about doing armlock from there. Good post.
"Jiu-jitsu is the gentle art. It's the art where a small man (or woman) is going to prove to you, no matter how strong you are, no matter how mad you get, that you're going to have to accept defeat."-Saulo Ribeiro
very cool. relson gracie showed us something very close to this a wile back at a seminar. for whatever reason i never think to do it, which i should, cause i always bait the sweep and trap the arm just like he did in the video.