Republic of Ireland advanced to the next stage of the Euro's with a late header from Robbie Brady, sending the nation jubilant.
Ireland join England, Wales and Northern Ireland in the last 16 as they are paired up with host and hot favourites France. One of the greatest moments in Ireland's footballing -maybe sports - history was produced prompting a brilliant reaction from UFC's featherweight champion Conor McGregor.
Here's his tweet:
Here's a round up of other reactions: