The technique starts with a hand on the collar, foot on the hip and sleeve grip. As you sit back, you place your free foot on your opponent's bicep, and switch your other foot (that was on their hip) into a short reverse De La Riva.
Next, your right hand switches from the collar grip, into holding your opponent's pants. Once you have this setup, you move your left foot (that was placed on your opponent's bicep) and place it against the hip, toes facing in.
Now all you need to do is push to complete the sweep. When the sweep is completed, you can finish with a foot lock or transition into an armbar.