Just 20 seconds into the first-round Nhat, 33, checked a low kick slightly too late and, off balance, was dropped to the mat by the right hand of Le Van Tuan, 28.
Mitch Aguiar is a 10-year Navy SEAL veteran, the founder of a Chesapeake vitamin and fitness company, plus the founder of the non-profit, Adopt A Cop BJJ - which stands for Brazillian Jiu-Jitsu.