Weight Issues

Ailin Perez has warned that she will not face Macy Chiasson at UFC Mexico City if her opponent misses the bantamweight limit. The No. 7-ranked fighter cited Chiasson's history of weight issues and her recent observations at the UFC Performance Institute. Meanwhile, Chiasson has focused on intense altitude training and dismissed Perez's mind games ahead of their February 28, 2026, bout.