UFC Vegas 107 main event canceled after Maycee Barber suffers potential seizure minutes before fight

ESPN aired a preview video for Maycee Barber vs. Erin Blanchfield. Then their broadcasters said the fight wasn't happening.

via: https://sports.yahoo.com/mma/breaking-news/article/ufc-vegas-107-main-event-canceled-after-maycee-barber-suffers-potential-seizure-minutes-before-fight-034431768.html