Himself
The event was the third that the organization has hosted in Dublin, following UFC 93 in January 2009 and UFC Fight Night: McGregor vs. Brandao in July 2014. The event was expected to be headlined by a lightweight bout between Dustin Poirier and Joseph Duffy. However, Duffy was forced to pull out of the fight on October 21, three days prior to the event, after sustaining a concussion during a sparring session earlier that week and the fight was scrapped. A flyweight bout between Paddy Holohan and Louis Smolka was promoted to serve as the event's new headliner. It was the first three-rounds main event bout since UFC 161 in June of 2013.
Himself
The event is expected to be headlined by a Middleweight Championship bout between the current champion Chris Weidman and former UFC Light Heavyweight Champion Lyoto Machida. The bout was originally scheduled to headline UFC 173 on May 24, 2014. However, the bout was delayed after Weidman sustained a knee injury which required a minor surgery. Main event: Middleweight Title Fight - Chris Weidman (c) vs. Lyoto Machida (#3) Women's Bantamweight Title Fight - Ronda Rousey (c) vs. Alexis Davis (#2) Heavyweight - Stefan Struve (#12) vs. Matt Mitrione Middleweight - Uriah Hall vs. Thiago Santos Bantamweight - Marcus Brimage vs. Russell Doane
