Pat Lam has made one change to the Connacht side that will face Glasgow in the province's first ever Pro12 play-off semi-final at The Sportsground on Saturday (6.30pm).
Galway man Eoin McKeon comes into the back row for Seaon O'Brien and is the only change to the starting XV that beat the same opposition in round 22 a fortnight ago.
John Muldoon captains the side from the base of the scrum in what will be the Portumna man's 274th game for the province.
The back line remains unchanged with try scorer from the last game Bundee Aki and Ireland international Robbie Henshaw retained in midfield. April Player of the Month Niyi Adeolokun and the league's top try scorer Matt Healy line out on the wings.
Andrew Browne is brought into the match-day squad and joins O'Brien among the replacement forwards.
"We are under no illusions when it comes to the challenge we face against the defending champions Glasgow, who are stacked with players with plenty of experience of test match and knock-out rugby," said head coach Lam.
"We know they will be much stronger than they were two weeks ago but if we channel our physicality and the excitement into our game, we will be able to meet that challenge head on.
"It's an exciting time for everyone involved in Connacht Rugby as we head into our first ever Pro12 semi-final.
"The reason we've had such a good record at home this season is the special atmosphere generated by our supporters and we're all looking to give them another special day to remember in our last home game of the season."
Connacht: Tiernan O'Halloran; Niyi Adeolokun, Robbie Henshaw, Bundee Aki, Matt Healy; AJ MacGinty, Kieran Marmion; Ronan Loughney, Tom McCartney, Finlay Bealham; Ultan Dillane, Aly Muldowney; Eoin McKeon, Jake Heenan, John Muldoon (captain).
Replacements: Dave Heffernan, JP Cooney, Rodney Ah You, Andrew Browne, Sean O'Brien, John Cooney, Shane O'Leary, Peter Robb.