From ChewJitsu:
“In this video my student Chad Hardy shows a De La Riva sweep to mount. Chad is like a little brother to me and one of my best training partners. In addition, he has a world and pan title to his name.
I’ve watched Chad use this De La Riva sweep in both training and numerous times in competition. If the De La Riva position is something you already use, then this is a great sweep to add.”