Phillip “The Wicked” Wyman is a retired Gunnery Sergeant, USMC, after 20 years of service.
In the Marine Corps, Phillip was on the ground floor of the development of the Marine Corps Martial Arts Program (MCMAP), and he currently holds a 4th degree in MCMAP.
https://bjj-world.com/33-bjj-solo-grappling-drills-will-surely-improve-game/
https://bjj-world.com/12-essential-bjj-drills-2-minutes-2/
