As you know in rugby, they release the line-ups a lot earlier than in football. Days in fact.
So, without further ado, here is how both teams line up for this monster clash.
Ireland XV: 15-Keenan, 14-Hansen, 13-Ringrose, 12-Aki, 11-Lowe, 10-Prendergast, 9-Gibson-Park; 1-Porter, 2-Kelleher, 3-Bealham, 4-Ryan, 5-Beirne, 6-Baird, 7-van der Flier, 8-Doris (capt)
Replacements: 16-Sheehan, 17-Healy, 18-Clarkson, 19-Henderson, 20-Conan, 21-Murray, 22-Crowley, 23-Henshaw
England XV: 15-Steward, 14-Freeman, 13-Lawrence, 12-Slade, 11-Murley, 10-Smith, 9-Mitchell; 1- Genge, 2-Cowan-Dickie, 3-Stuart, 4-Itoje (capt), 5-Martin, 6-Curry, 7-Curry, 8-Earl
Replacements: 16-Dan, 17-Baxter, 18-Heyes, 19-Chessum, 20-Cunningham-South, 21-Willis, 22-Randall, 23-Smith