Round 1 - Referee Kevin Mulhall in the cage for this contest. Trinaldo takes the center and paws his lead right. Rio kicks the leg before Trinaldo connects with a big overhand left. Rio drops levels for a shot and narrowly avoids another big left hand. He scores the takedown. Trinaldo works to his knees as Rio controls the head and wraps the left leg. Trinaldo moves to his feet, and Rio tries to get a standing guillotine. It's not there, so he works back into a clinch. Knee traded inside. Rio walks away. Trinaldo chases and scores a powerful takedown. Rio secures half-guard underneath. Trinaldo patiently works in the side choke and squeezes. Rio looks comfortable underneath, but Trinaldo adjust his grip and gets the tap with a powerful squeeze. Francisco Trinaldo def. Mike Rio via submission (arm-triangle choke) - Round 1, 3:08.