McCartney takes his place in the front row alongside loose head Denis Coulson and tight head Finlay Bealham. The pack that dominated against Ulster and contributed four tries, two from lock Ultan Dillane and one each from flankers Eoghan Masterson and Jarrad Butler, sees one other change. Lock James Cannon comes in as a direct replacement for Quinn Roux.

Cian Kelleher joins a back three that includes the in form winger Matt Healy and full back Tiernan O’Halloran. In the midfield Ireland international Bundee Aki and Tom Farrell continue their partnership.

Jack Carty continues at out half alongside scrum half Kieran Marmion.

Connacht will take confidence from the win against Ulster but will be fully aware of the challenge they face against an in form Leinster side according to Head Coach Kieran Keane. “It was great to get the interpro series off to a flying start against Ulster and coming off two big wins in Europe it was no more than the boys deserved. They are a great group and have been working really hard and we saw the results of that hard work with the performance they delivered against Ulster”, Keane said.

“We face another big challenge against Leinster. They are a top side and are really in form as we saw with their performance against Munster in Thomond Park. We will be focusing on ourselves and our game plan and will try and implement it as best we can. We had a fantastic home crowd that really got behind us in our win last weekend, but the roles will be reversed on New Year’s Day. We will be the underdogs against Leinster and we will need to put in a big performance against them”, added Keane.

Flanker Eoghan Masterson who scored a try in the win over Ulster, feels that Connacht’s game plan has been coming together over the last few weeks. “It takes time to get used of a new style and a new system and that’s what we have been working on since the start of the season. When people outside of Connacht don’t see immediate results, they presume that the plan isn’t working but that’s not the case and we have seen things really coming together over the last few weeks. Against Leinster we are fully aware of the challenge. The RDS is a very tough place to go and win and very few teams manage to do it. The interpro games are difficult games, especially when you are playing away from home, so we are under no illusion of the challenge we face on New Year’s Day”.

#LEIvCON

Kick-off 3:15pm:

(15-9) Tiernan O’Halloran, Cian Kelleher, Bundee Aki, Tom Farrell, Matt Healy, Jack Carty, Kieran Marmion, (1-8) Denis Coulson, Tom McCartney, Finlay Bealham, Ultan Dillane, James Cannon, Eoghan Masterson, Jarrad Butler, John Muldoon (Capt)

Replacements (16-23): Shane Delahunt, Peter McCabe, Conor Carey, Quinn Roux, Naulia Dawai, Caolin Blade, Eoin Griffin, Niyi Adeolokun.