Round 1: Trinaldo comes out measuring his distance. He lands a straight left hand. He lands again, but Rio gets a takedown. Rio looks to secure a guillotine. Trinaldo stands and gets free. He presses Rio against the cage. They exchange knees to the body. Rio breaks free but Trinaldo gets a powerful body lock takedown. Trinaldo applies an arm-triangle choke. He tightens it down from the half guard position and forces Rio to tap out.
The official time of the submission was 3:08 of the first round.