Conor McGregor has been charged with assault for punching a man in a Dublin, Ireland, bar in April.

McGregor, the former UFC two-division champion, was formally served with a summons and is due in a Dublin court Oct. 11 on the charge, McGregor spokesperson Karen Kessler confirmed with ESPN's Ariel Helwani. McGregor's team had no further comment.

Per the The Independent, the assault charge carries a maximum prison term of six months if convicted, a fine of $1,646, or both.

The incident occurred April 6 at the Marble Arch pub. McGregor, 31, was captured on camera punching a man, who was sitting at the bar, in the face. The man is in his 50s.

In an August interview with ESPN, McGregor expressed remorse for his "unacceptable behavior" in the situation.

"I was in the wrong," McGregor said. "That man deserved to enjoy his time in the pub without having it end the way it did. ... I tried to make amends, and I made amends back then. But it doesn't matter. I was in the wrong. I must come here before you and take accountability and take responsibility. I owe it to the people that have been supporting me. I owe it to my mother, my father, my family. I owe it to the people who trained me in martial arts. That's not who I am. That's not the reason why I got into martial arts or studying combat sports. The reason I got into it was to defend against that type of scenario."

McGregor (21-4) has not fought since a loss to Khabib Nurmagomedov at UFC 229 in October 2018. Since then, he has had a series of outside-the-cage issues. The Irishman was arrested in March in Miami for smashing a man's cell phone outside a club. Later that month, the New York Times reported that McGregor was under investigation in Ireland for alleged sexual assault. McGregor tweeted around the same time that he was retired from MMA, but has since backed off from that statement.

"I must get my head screwed on and just get back in the game and fight for redemption, retribution, respect -- the things that made me the man I am," McGregor told ESPN in August. "And that's what I will do."