The Ospreys take on the Dragons at 3pm and Scarlets welcome the Cardiff Blues at 5.15pm at the home of Welsh rugby, as the two teams from the West play host for the first time in the eight year history of the event.
Wales' Capital Region triumphed the last time they faced Scarlets at the Principality Stadium, thanks to an Alex Cuthbert try and the boot of Gareth Davies.
“Judgement Day is not only a showpiece event for the Guinness PRO14, but it is also an annual celebration of the domestic game in Wales,” said WRU chairman Gareth Davies.
“Set against the backdrop of Wales’ World Cup campaign in Japan, not to mention the 2020 Guinness Six Nations and whatever twists and turns that may hold for the international side, JDVIII is the chance for our star players to compete on home soil in regional colours.
“The event showcases the best of Welsh rugby at one venue and is always fascinating. Arriving as it does in Round 17 of the league campaign, when all four teams should still have play-off spots to play for, it has the potential to be even bigger and better this year.”
General prices are £25 middle tier (£10 U16s concession) and £15 for both lower and upper tier adult tickets (including Alcohol Free Zone) available via www.wru.wales/tickets, where £10 adults and £5 U16s offers accompany the on sale date.
‘Home’ season ticket holders, so Ospreys and Scarlets fans, gain free entry but should have already confirmed attendance to reserve their seats – supporters entitled to this access, who have not done so, should contact their relevant ticket office immediately.
Judgement Day regularly attracts crowds well in excess of 50,000, with the record attendance for the event – and any PRO14 game – standing at 68,262 set in 2016.