BBC Sport - Judgement Day III: Rivalries set in stone - BBC Cymru Wales' trailer
Judgement Day: Rivalries set in stone
- From the section Welsh Rugby
Watch BBC Cymru Wales' trailer for Judgement Day III as Cardiff Blues prepare to face Ospreys and Newport Gwent Dragons get ready to battle Scarlets in a Pro12 double-header on Saturday, 25 April.
It is the third year running that back-to-back derbies are being staged at the Millennium Stadium.
Blues face Ospreys at 14:30 BST, followed by Dragons against Scarlets at 16:45 BST.
Scrum V on BBC Two Wales and Clwb Rygbi on S4C will have live coverage of both matches.