FRIDAY:RaboDirect Pro12: Ulster v Aironi, Ravenhill (7.05); Newport Gwent Dragons v Connacht, Rodney Parade (7.15); Edinburgh v Scarlets, Murrayfield (7.35); Warriors v Cardiff Blues, Firhill (7.35).
SATURDAY:RaboDirect Pro12: Ospreys v Benetton Treviso, Liberty stadium (6.0); Munster v Leinster, Thomond Park (7.30).
Ulster Bank League Division 1A (2.30):Blackrock College v Dolphin, Stradbrook; Clontarf v Garryowen, Castle Avenue; Cork Constitution v St Mary's College, Temple Hill; Lansdowne v Young Munster, Aviva stadium; Old Belvedere v Shannon, Anglesea Road.
Division 1B (2.30):Ballymena v Belfast Harlequins, Eaton Park; Bruff v Dungannon, Kilballyowen Park; Buccaneers v UCC, Dubarry Park; UL Bohemian v Galwegians, Annacotty; UCD v Ballynahinch, Belfield.
Division 2A (2.30):Terenure College v Instonians, Lakelands; Bective Rangers v Clonakilty; City of Derry v Malone, Judge's Road; Corinthians v Thomond, Corinthian Park; Midleton v QUB, Towns Park; Old Crescent v DLSP, Rosbrien.
Division 2B (2.30):Ards v Boyne, Hamilton Park; Armagh v Highfield, Palace Grounds; Nenagh Ormond v Naas, New Ormond Park; NUIM Barnhall v Sligo, Parsonstown; Rainey OB v Navan, Hatrick Park; Sunday's Well v Banbridge, Musgrave Park; Suttonians v Connemara, JJ McDowell Memorial Grounds; Wanderers v Cashel (tbc).