It's big - very bigpublished at 13:26 Greenwich Mean Time 11 February 2023
Ireland v France (kick-off 14:15 GMT)
So, here we go then.
Ireland v France. World number one v world number two. Favourites v the holders.
The stats all say the same thing. All rugby eyes are on Dublin's Aviva Stadium this afternoon for a huge Six Nations encounter that could go a long way to deciding the destiny of this year's championship.
You probably don't need us to remind you that the visitors have won 14 matches on the bounce, or that the hosts are vying to set a national record of 13 successive home victories.
Or, indeed, that the French have won the past three matches between the sides and were the last team to win in Dublin - in 2021.
We've got live radio commentary across BBC Sounds and blow-by-blow live text commentary online, while our man Matt Gault is nestled in the Aviva press box ready to provide his own insights and match report, with reaction and highlights to follow.
Got all that? Nice one. Let's enjoy this together.