The newly named Magners league starts tonight with three Irish teams playing this weekend.
Connacht faces Border Reivers at 19:30 today at Netherdale.
Munster are away from home and play Cardiff in arms park. (Live on BBC two wales)
Lastly tomorrow will see Ulster play the Llanelli Scarlets at home in Ravenhill.
Each week their will be one team who do not have a match this week it is the turn of Leinster, they start their campaign next week against Edinburgh.
Best of luck to all the Irish teams this week!