The UFC Fight Night card in Dublin, Ireland has just lost its main event. Joseph Duffy has been forced to pull out of his bout with Dustin Poirier due to what is being called a “mild concussion” With the card only a few days away the UFC has scrapped the bout all together in favor of finding a replacement for Poirier to face.

The UFC sent out an official statement about severity of Duffy’s injury and the decision to pull him from the bout:

“Having learned that Duffy received a strike to the head during training earlier this week, UFC sent him for medical tests in Ireland for precautionary purposes. The results determined that Duffy suffered a mild concussion and due to the proximity of the fight this Saturday UFC will not permit him to compete. The health and safety of UFC athletes will continue to be the top priority for the organization. As such, UFC has respected standard athletic commission regulations, which recommend a medical suspension from competition as a result of the concussion.”

In a matter of a week the UFC has lost both its main event and co-main event for the Dublin card. Stipe Miocic was forced out of his bout with Ben Rothwell due to an undisclosed injury. A flyweight bout between Paddy Holohan and Louis Smolka has been bumped up to the main event.

UFC Fight Night 76 takes place at Dublin’s 3Arena on Oct. 24th with the entire card being available exclusively on the UFC Fight Pass.