Rocky Johnson is most notable for his win by submission over an American mixed martial artist who competes for who?
Rocky Johnson (mixed martial artist):  He is most notable for his win by submission over future UFC Lightweight Champion Benson Henderson. Benson Henderson: Benson Henderson (born November 16, 1983) is an American mixed martial artist who competes for Bellator MMA, and is a former UFC Lightweight Champion and WEC Lightweight Champion.
i don't know