(all Saturday 2.30 unless stated)
DIVISION 1A
Clontarf v Old Belvedere, Castle Avenue, Tonight 7.30
Leinster's Noel Reid has been made available for selection and wing Richie Lane is free from work commitments for 'Tarf coach Andy Wood.
Belvedere coach Andy Dunne is likely to go for the same collection that ripped Cork Con apart two weeks ago.
Garryowen v St Mary's College, Dooradoyle
Mary's put more light between them and bottom club Shannon by winning at Coonagh two weeks ago. Second-placed Garryowen will be a different prospect.
Young Munster v Lansdowne, Tom Clifford Park
Coach Mike Ruddock should have front rowers Jack O'Connell, Tom Sexton and Martin Moore free of Leinster obligations.
DIVISION 1B
Blackrock College v Ballymena, Stradbrook
'Rock have eked out away wins at UCD (19-17) and Dungannon (9-8) to move off the bottom and should make it three on the spin.
Buccaneers v Dublin University, Dubarry Park
Director of rugby Tony Smeeth is keen to make it seven from seven and keep up with Ballynahinch.
UCD v Dungannon, Belfield
College will be smarting from a loss to Trinity. Blues forwards Conor Gilsenan and Jordan Coghlan, and backs Luke McGrath and Andy Boyle could start.
DIVISION 2A
Corinthians v Greystones, Corinthian Park
Stones' injured Ronan Carroll is forced to give way for Brendan Kennedy on the right wing.
Old Wesley v Cashel, Donnybrook
Steve Harvey moves from centre to wing to make room for Richie Jermyn.
Seapoint v DLSP, Kilbogget Park
The home side make just one change, Killian Jenkinson coming in for Ken Casey in the centre.
Terenure College v Bective Rangers, Lakelands Park
Second-from-top 'Nure go fishing for win number five. Rangers need to make it two wins from six.
DIVISION 2B
Armagh v Navan, Palace Grounds
The injury-prone Mark Harrington returns to the first team for Alan Hickey in his first start this season.
Naas v Suttonians, Forenaughts
Naas player-coach Niall Carson keeps the same side edged out by Boyne.
Nenagh Ormond v Skerries, New Ormond Park
North Dublin club Skerries have a below-par 50pc return from five matches with a single draw.
Sunday's Well v NUIM Barnhall, Musgrave Park
Barnhall coach Dennis Bowes will be eager to see his team push on from the 72-0 win over Clonakilty.
Thomond v Boyne, Fitzgerald Park
Boyne coach Craig McGrath brings Graham McQuillan and Adam Sherrard into the back three.