Ireland's UFC superstar is backing a 'Yes' vote in the upcoming marriage equality referendum. 

Although he's busy training in Las Vegas for his bout against Jose Aldo in July, McGregor took time out today to tweet that he and the rest of his team-mates from the famed SBG training facilities in Dublin are supporting the 'Yes' campaign in their efforts to ensure that everyone in the country has the right to marry. 

We're sure the entire nation will be backing him too in his efforts to bring home the belt too.