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.
The teams for the first Monday Night Rugby fixture of the 2020/21 Guinness PRO14 season have been named with Munster and Cardiff Blues battling to retain their unbeaten records.
The Cardiff Blues have quietly gone about their transfer business in the last two close-seasons by making a series of shrewd signings. The addition of Josh Adams and Hallam Amos added firepower to an already potent Blues backline
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.
Ulster cantered into an early 17-point lead in Belfast but they then lost their way against Cardiff and their winning performance ultimately left much to be desired.