Friday: Castres 13-16 Munster, Cardiff 33-36 Harlequins; Saturday: Wasps 30-22 Toulouse, Connacht 28-29 Leicester, Ospreys 10-25 Racing, Exeter 52-17 Glasgow, La Rochelle 39-21 Bath, Bristol 28-17 Stade Francais; Sunday: Leinster 89-7 Montpellier, Northampton 20-24 Ulster