On the eve of the UFC on ESPN 27 weigh-ins, Saturday’s card has lost its co-main event. The women’s bantamweight matchup between contenders Macy Chiasson and Aspen Ladd has been canceled, promotion officials announced Thursday. Though the UFC did not specify which fighter was injured, MMA Junkie has learned from an anonymous source close to the situation that Chiasson (7-1 MMA, 5-1 UFC) was the injured party. The card will proceed with 11 fights. It is unclear which fight, if any will bump up from the prelims onto the main card