Ballynahinch have only four games left to preserve their Division 1A status starting with the visit of Young Munster to Ballymacarn Park.
Derek Sufferin’s side are level on points with Garryowen at the foot of the table. Dolphin and St Mary’s have a 10 point gap and a match in hand over the bottom two with one side relegated and the team finishing 9th going into a playoff with the runners up in Division 1B.
Prop Kyle McCall has been released by Ulster with Johnny Murphy starting at hooker.
Lock John Donnan is unlikely to feature again this season due to injury and flanker Paul Pritchard is unavailable so Neil Faloon comes into the back row.
Behind the scrum Ulster utility back David McIlwaine is avaialbe while Aaron Cairns and Matthew Arneill come into the match day squad.
Dungannon’s 27-27 draw with Blackrock means they are still rooted to the bottom of the table but have closed the gap on Trinity to six points and have a game in hand.
Third place Buccaneers visit Stevenson Park and the Connacht side are still in contention for the promotion playoff spot.
Paddy Johns has Ulster duo Adam Macklin and Peter Nelson released. Macklin is in an experienced front row with Glen Sinnamon and Paul Jackson with Nelson starts at centre.
Belfast Harlequins will have Rory Scholes for their visit to struggling Trinity.