A late first half goal from Roger Espinoza gave Wigan the lead against Swansea at half time.
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Llanelli Scarlets will take on Glasgow Warriors this evening in the first match of the Pro12 campaign.
There'll be a few showers in the south overnight, but these will clear by the morning to leave a decent start to the weekend!
Thousands are expected to attend the arts and music festival, which is now in its fourth year.