EU Brexit negotiator Michel Barnier joined taoiseach Leo Varadkar and tánaiste Simon Coveney at Dublin's Aviva Stadium to watch Ireland's win over France on Sunday.
The French politician, who is leading the European Union's Brexit negotiations with the UK, was also joined by French farmers' leader Christiane Lambert and Irish Farmers' Association president Joe Healy, at the rugby match.
Ireland beat France 26-14 to keep their Six Nations title hopes alive.
The UK is due to leave the EU on March 29 but there is still no agreement between the two sides and no clear vision of how the border will operate after Brexit.
A vote on British Prime Minister Theresa May's latest deal is due to be held in the Commons tomorrow.
