We take a look at 15 Wales Vs Ireland Stats and Facts ahead of tomorrow's Six Nations clash at Principality Stadium.
1. Lock Tadhg Beirne will make his Six Nations debut
2. Wales' Warren Gatland is aiming to become the first man in history to coach a side to three Five/Six Nations Grand Slams in what will be his 50th and final match in the tournament before leaving his post after the World Cup later this year.
3. Victory over Ireland would emulate his achievements in 2008 and 2012 and would also give Wales a first championship title since 2013.
4. Since losing against Ireland last February, Wales have put together a national record run of 13 straight victories.
5. A Wales win would give them the Six Nations title and Grand Slam.
6. A draw for Wales would be enough to win the championship if England lose.
7. If both sides draw, England would win the title if they earn a bonus point and Wales don't
8. Wales – on a 13-Test win streak – have won their last two home Six Nations matches against Ireland, but Joe Schmidt’s men have triumphed in their last four championship away games.
9. Welsh captain Alun Wyn Jones will win his 134th cap and draw level with Gethin Jenkins as his country’s most capped player, fifth in the worldwide list.
10. Ireland currently sit in third place on 14 points, meaning an improbable bonus point win away to Wales would leave them on 19.
11. Defeat will see Wales miss out on the title - unless they secure two losing bonus points and Scotland beat England.
12. Ireland were the last team to beat Wales, in the third round of last year's Six Nations.
13. The Irish have lost just four of their last 17 Tests in Wales, but three of those have come in the last five visits.
14. Wales haven't conceded 20 points or more in any of their last six matches in the Six Nations - their longest run since going eight consecutive games between 2007 and 2009.
15. Eight of Ireland's 13 tries have originated from line-outs, the highest total in the 2019 Championship.