BBC Sport Wales looks at what gives an edge to this grudge fixture between clubs at opposite ends of the country.
Cardiff say they are "relieved", Dragons "encouraged", Scarlets "confident" while Ospreys remained bullish about their future after the WRU reveals plans to cut one regional team by 2027.
On Tuesday, Wrexham will face Cardiff for the first time in 21 years – a lot has changed at the two clubs since their last ...
A women's football team have claimed they were mocked by the opposition during a match for speaking Welsh, and told to "speak ...
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Wrexham football club denies anti-Welsh speaking accusations
A football team from Wrexham has denied allegations that its players and staff mocked the opposition during a match for speaking Welsh.
The WRU announces it will cut the number of its professional regional teams to three by 2027 but will continue to have four ...
Cardiff's Alex Mann has won the battle for the number six jersey alongside Jac Morgan and Aaron Wainwright. Dafydd Jenkins ...
Former fly-half Elinor Snowsill says it is "very frustrating" when England come after Wales' best young talent.
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