*all matches tomorrow KO 2.30 unless stated
Lansdowne v Terenure College, The Aviva Stadium, Tonight 7.30.
The 2013 champions will have to be on their mettle to make it five wins from seven as second host first. Kevin O'Dwyer and Graham Coffey could return after the runaway leaders showed no signs of faltering at UCD to make it six straight.
Cork Constitution v Clontarf, Temple Hill.
Tarf coach Andy Wood will have to move beyond the 50pc win ratio as the race for the Top 4 starts to heat up.
Old Belvedere v UCD, Anglesea Road.
Belvo will expect Leinster's Steve Crosbie and Connacht's Peter Robb back in the three-quarter line. College select Ireland U20 openside Dan Leavy for the first time this season in a competent back row with Jordan Coghlan and Peader Timmins.
St Mary's College v Young Munster, Templeville Road.
Former Blackrock College Leinster Schools forward trio David O'Connor, Conor Oliver and Nick Timoney have bedded down well in the back five.
Buccaneers v Dublin University, Dubarry Pk.
Trinity have still not hit top form, despite a victory over Shannon to move into sixth in the queue.
Bective Rangers v Old Wesley, Donnybrook.
It's the biggest one for these two. Prop Simon O'Shea and centre Conor Treacy are back in Rangers' first XV. Coach Morgan Lennon hands a start to Josh Hinde in the second row instead of Mike Dunleavy.
Banbridge v NUIM Barnhall, Rifle Park.
Director of Rugby Dennis Bowes has his men close enough, if good enough, as they trail leaders Wesley by just two points.
Dungannon v Blackrock College, Stevenson Park.
Rock are showing signs of life, losing just once in six, to sit in fourth place on the ladder.
Naas v Rainey Old Boys, Forenaughts.
Coach Peter O'Donnell won't make too many changes based on their improved performance last week.
Queen's University v Seapoint, Dub Lane.
The Killiney club is moving in the right direction after edging out Thomond on home turf in what will be a real tester in Belfast.
Thomond v Skerries, Fitzgerald Park.
The North Dubliners, in fifth from a demolition job on Bective, are tracking the pacesetters nicely away to third-from-top Thomond.
DLSP v Navan, Kirwan Park, Tonight 7.30.
Salmo' captain Manus Collins is extremely doubtful, but back row partner Ultan Bruton should be fit. The Meath club are only five points out of second, even though they are eighth. They need this one.
Ards v Greystones, Hamilton Park.
Coach Kevin Lewis welcomes back forwards Ronan Kearney, Jack Keating and Shane Mulvaney from injury.
Midleton v Boyne, Towns Park.
Niall Ronan calls up Jack Foley in the second row and Rory Hennessy to number eight.
Tullamore v Bruff, Spollanstown.
Coach Geoff Kenny needs to see a positive reaction from a sickening one-point downer at Old Crescent in the last round.
Wanderers v Armagh, Merrion Road.
The cloud of inconsistency popped again in the loss at Sligo last week as hard-to-beat Armagh come to town.