Ospreys take on Toulouse, while Scarlets are at home to Exeter.
KO for both games is at 13:35
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Some clear spells to start the night but the cloud will thicken bringing patchy rain for some!
Carwyn Jones was "received in Audience" by the Queen today. The initial handshake was photographed but their conversation remains private.
The actress has lent her voice to the school's production of Hans Christian Andersen's The Little Match Girl.