The WRU have confirmed that the Millennium Stadium roof will be closed for Saturday's RBS 6 Nations decider between Wales and England.
The match will determine the destination of this year's title, with England also having the chance of a first Grand Slam since 2003.
The weather forecast is dubious in the run-up to the 5pm kick-off and the teams have agreed to the roof being shut.
Closing the roof requires the say-so of both sides, and with so much riding on the match their verdict has been unanimous.
They made the same decision in their last meeting at the ground in 2011, when England won 26-19.
A short statement confirmed: "The WRU can confirm the roof at the Millennium Stadium will be closed for tomorrow's Wales v England RBS 6 Nations fixture."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The Barbarians are one of the top invitational rugby sides with a long history and classic rugby jersey.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Lions get ready for their matches with this green training jersey. It's what the players wear. Get in the Gear!
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
The Lions are ready to get their Australia tour underway. They arrive in Perth on Monday.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.