It started in Tokyo. The second round of World Victory Road's Sengoku featherweight grand prix in 2009, Marlon Sandro coming at him with what looked like an overhand right.
Nick Denis lifted his arm to block it.
"But instead of an overhand right, he threw a right uppercut," Denis told MMAjunkie.com. "The last thing I remember was seeing his fist coming toward my face and thinking, oh s---."