Lightweights Dustin Poirier and Joseph Duffy will square off in the main event of UFC Fight Night 77, the promotion announced recently.

Set for October 24, the event will take place inside the 3Arena in Dublin, Ireland.

Poirier (18-4) has won two straight since a loss to current interim featherweight champion Conor McGregor. “The Diamond” has stopped both of his opponents in his lightweight return.

Duffy (14-1) is a perfect 2-0 since signing with the UFC, including a recent first round submission over Ivan Jorge. He is the last man to best McGregor when the two were competing against one another before moving to the UFC.