Round 1 - Referee Herb Dean in the cage for this welterweight matchup. Woodley keeps distance early before a right hand scores. Hieron hits the floor, and Woodley follows. Hieron trying to recover, but Woodley will not relent. Big punches come in strong and flush. Hieron is out cold. Unbelievable UFC debut. Tyron Woodley def. Jay Hieron via knockout (punches) - Round 1, 0:36.