Cardiff will feature seven new signings in their opening pre-season friendly against Ealing Trailfinders tomorrow at the Trailfinders Sports Club.
A youthful Leinster team maintained their BKT United Rugby Championship table-topping form with a 38-14 win over Cardiff at the RDS.
Munster guaranteed a play-off berth in the United Rugby Championship and boosted their hopes of a home quarter-final.
Cardiff Blues interim director of rugby Dai Young celebrated his return to the region after a 10-year absence with a 13-10 win over the Scarlets in Llanelli.
It has been a difficult few weeks in the PRO14 for Cardiff but they got back on the horse on Monday with a victory against Benetton.
Injuries to the likes of Ellis Jenkins, Josh Navidi and most recently Rory Thornton left Blues boss John Mulvihill in need of some additional heft in his pack.
Rory Thornton has completed a permanent switch to Cardiff Blues from the Ospreys, following a successful season-long loan at Cardiff Arms Park.
Hot prospect Rory Thornton is leaving the Ospreys to join regional rivals Cardiff Blues.