Power. This is one of my Street Fight Bootcamp lessons but will work great for MMA. Elbow to the solar plexus. Practice driving your elbow into BOB’s solar plexus. If you go deep enough you will effect the liver and gall bladder. This will take your opponents breath and might cause vomiting or will set up a take down or another strike. By Your Virtual MMA Coach David Alexander. I also posted this on my 1LessonSelfDefense.com site.