Lets’ try this again. Multi-time world champion boxer turned undefeated mixed martial arts fighter Holly Holm was initially supposed to make her Octagon debut opposite Raquel Pennington at UFC 181 on Dec. 6. Holm, however, had to pull out of the fight due to injury.
See the article here:
Holly Holm vs. Raquel Pennington Rescheduled for UFC 184 – MMA Weekly