Conor McGregor and Dustin Poiriers first fight at UFC 178

September 27th 2014

MGM Grand Garden Arena Las Vegas, Nevada.

In the main event of UFC 178, Conor McGregor and Dustin Poirier faced off for the first time in a highly anticipated lightweight bout. The fight was a back-and-forth affair, with both fighters having their moments. In the end, it was McGregor who emerged victorious, knocking out Poirier in the first round.

The win was a major statement for McGregor, who was still relatively new to the UFC at the time. It also set up a potential rematch between the two fighters, which could take place later this year.