The Ultimate Fighting Championship (UFC) is a premier mixed martial arts organization. Bantamweight is a weight class in the UFC, generally contested between fighters weighing up to 135 pounds. UFC Fight Night events showcase a range of fights. - UFC Fight Night 252 took place in Seattle, marking the UFC's return to the city after a long absence. - The main event featured a bantamweight bout between Henry Cejudo and Song Yadong. - The event included a full fight card with multiple matches. - Weigh-ins for the fighters were held before the event.