Here’s 3 easy techniques to train when you’re starting on your knees while rolling with your training partners.
In the first one, you drive your opponent to his back, then take an armbar submission on him.
In the second one, you begin the same way, but he’s able to counter by driving you to your back. In that situation, you bring your leg around his head from an armbar while on your back
In the last techinque, you cup your opponents elbow, put your foot to his hip, and lay back (stretching him out), bring your leg over his head to a face-down armbar.