Joseph Duffy vs. Dustin Poirier to Headline October UFC Card in Dublin

BREAKING!! @DustinPoirier vs. @Duffy_MMA announced as main event for #UFCDublin! Tix: https://t.co/qEkxR0YL13 pic.twitter.com/RZJNtposDZ

— UFC UK (@UFC_UK) July 29, 2015

The last man to defeat Conor McGregor will face a stiff test in Dublin.

Joseph Duffy, who tapped out McGregor with an arm-triangle choke in just 38 seconds in November 2010, will take on Dustin Poirier in a lightweight main event at 3Arena on Oct. 24. Ultimate Fighting Championship made the pairing official Wednesday morning.

Duffy, 27, is 2-0 in the Octagon with two first-round finishes. The MMA Clinic product has a career record of 14-1 with four knockouts and nine submissions. Only one bout has went the distance in his tenure.

Poirier, 26, has emerged as a contender at 155 pounds following a stint at featherweight. The American Top Team representative has won two straight over the likes of Yancy Medeiros and Carlos Diego Ferreira since being destroyed by McGregor in September 2014.