Pat Lam welcomes back experienced duo Tiernan O'Halloran and Kieran Marmion as he makes four changes to his side to take on Ospreys on Saturday evening.

The Irish internationals come back into the side in the backline, with O'Halloran making his first appearance for Connacht since his Ireland debut in South Africa three months ago.

James Connolly starts alongside Eoin McKeon and captain John Muldoon in the back row, while Ronan Loughney packs down in the front row.

"Following a few injuries and knocks from last week, we've obviously made some changes to the starting team for tomorrow," Lam said fo the changes.

"With Caolin (Blade) and Cian (Kelleher) unable to train fully all week, it's fortunate that we're able to bring in the experience of Connacht centurions Kieran (Marmion) and Tiernan (O'Halloran).

"Ospreys will be another big challenge for us and will come here determined and confident after their impressive win over Zebre in round 1. It's been a tough week with a lot of honesty and learnings for us as a team. I have no doubt that with another game under our belt, we will see a big improvement tomorrow."

Forwards Dominic Robertson-McCoy and Rory Moloney are both in line to make their Connacht debuts from the bench tomorrow while Danie Poolman is included among the replacement backs.

Connacht Team to face Ospreys

(15-9) Tiernan O'Halloran, Niyi Adeolokun, Eoin Griffin, Bundee Aki, Matt Healy, Jack Carty, Kieran Marmion

(8-1)  John Muldoon, James Connolly, Eoin McKeon, Danny Qualter, Ultan Dillane, Finlay Bealham, Tom McCartney, Ronan Loughney

Replacements:

(16-23) Dave Heffernan, Dominic Robertson-McCoy, JP Cooney, Lewis Stevenson, Rory Moloney, Caolin Blade, Shane O'Leary, Danie Poolman