Bruce lee techniques still used in modern day combat and in ETD starting he just show the glimpse of what today MMA is all about ,and the best thing about its technique it has no style so it fit anywhere. Remember his famous quote " Empty your mind, be formless. Shapeless, like water. If you put water into a cup, it becomes the cup. You put water into a bottle and it becomes the bottle. You put it in a teapot, it becomes the teapot. Now, water can flow or it can crash. Be water, my friend.” so as his style like water.