Cardiff City take on Hull later in what will be the first top-flight meeting for the two sides in Wales.
Today's match is a big chance for Cardiff to bank three important points in the league relegation battle. The reverse fixture in September ended in a 1-1 draw.
Former Manchester United favourites, Ole Gunnar Solskjaer and Steve Bruce, will also come face-to-face for the first time today.
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Heavy, thundery showers will clear northwards through the morning, allowing it to turn mostly dry and bright for many.
Some locally heavy showers are possible overnight, particularly in the east, where some thundery downpours are possible.
Wayne Pivac praised Scarlets' attacking style as they secured the Guinness PRO12 title with a stunning 46-22 success against Munster.