Complex sentence: Trevino set up camp at Fairtex Muay Thai in Chandler, Arizona under the Muay Thai trainers Trevino earned her first World Muay Thai title in her second rematch against Kym Messer.
Split into simpler sentences: Trevino set up camp at Fairtex Muay Thai Camp in Chandler, Arizona. While under Fairtex Muay Thai trainers Trevino earned her first World Muay Thai title in her second rematch against Kym Messer.