UFC 188 took place on June 13, 2015, at the Mexico City Arena in Mexico City, Mexico. This event was notable for featuring a heavyweight title unification bout between Fabricio Werdum and Cain Velasquez. Werdum won the fight, becoming the undisputed heavyweight champion. The card also included several other exciting matchups, showcasing fighters from various weight classes. Notable performances included Gilbert Melendez vs. Eddie Alvarez and Kevin Gastelum vs. Nikita Krylov. Overall, UFC 188 was a significant event in the UFC calendar, highlighting the growing popularity of mixed martial arts in Mexico.