St Mary's out to crush 'Rock and roar into top spot
(matches tomorrow at 2.30, unless stated)
St Mary's College v Blackrock College, Templeville Rd
Peter Smyth's players are one point off first place. They cannot afford to drop points on the afternoon they run a Ladies' Day for the Cancer Society. Eric Miller abruptly resigned as Blackrock head coach this week. Ben Mannion will take over for the rest of the campaign.
Young Munster v Clontarf, Tom Clifford Park
Flanker Simon Crawford and centre Killian Lett are 50-50 to play. Barry O'Mahony, Frank Cogan and Ben Barclay are back from club international duty for the leaders.
Dolphin v Lansdowne, Musgrave Park
Ireland U20 wing Foster Horan and second row Tadhg Beirne could come into the mix after the Six Nations.
Garryowen v Old Belvedere, Dooradoyle
The Limerick club are sure to make life difficult for the champions, who are in search of their first win of the season.
UL-Bohemian v UCD, Annacotty
Director of rugby Bobby Byrne will hope to make use of Leinster lock Mark Flanagan and Ireland U20 wing Sam Coghlan-Murray.
DLSP v Old Wesley, Kirwan Park
Salmo' coach David Murphy will be eager to stop a three-match losing streak that has meant a slide down to fifth. Wesley will have to make do without Isaac Muller, who is out with a broken jaw. Ian Cassidy steps in at nine and Iain McGann is in for Phillip Hosie at lock.
Greystones v Seapoint, Dr Hickey Park
Lock Ben Armstrong and fly-half James Power return from injury for 'Stones for what amounts to a local derby. Seapoint props Brian Lyons and Martin O'Connor have been drafted in to work with hooker Kevin Moes in the front row.
Terenure College v Midleton, Lakelands Park
Director of rugby Ian Morgan is waiting on fitness reports on scrum-half Mark O'Neill and wing Harry Moore. Prop Tony Byrne is out.
Clonakilty v Dublin University, The Vale
It is difficult to see any unforced changes to Tony Smeeth's runaway leaders as they look for win 12 out of 13 matches.
Bective Rangers v City of Derry, Donnybrook
Rangers front-rowers Will O'Donovan and David Halliday return from long-term injuries.
Navan v Wanderers, Balreask Old
Back-rowers John Sheridan and Shane Dawson have been called up to join number eight Leigh Jackson. New coach Greg Lynch is struggling to get the reaction he wants from a group in serious danger of going out of the AIL.
Boyne v Rainey Old Boys, Drogheda
Player-coach Craig McGrath has the Meath club handily placed in mid-table with five wins, five losses and two draws.
Naas v Ards, Forenoughts
Player-coach Niall Carson goes with the same side again in a bit to move to avoid getting dragged into the relegation war.
Armagh v Suttonians, Palace Grounds
Ronan Murphy returns to the centre for Suttonians with Alan Dodd shifting to the left wing for Eoin Keenan.
Banbridge v NUIM Barnhall, Rifle Park
Lock Roger Young, right-wing Adam Hughes and full-back Eoin Hogan have been summoned for first-team duty.