Try Siroco on the main street. Andreus always used to put the games on for us. We'd book a table and have food there, it's a great eating place.
Scala is a fantastic place for eating out, try to find Michaels bar, he's a character, and next to a small restaurant that's run by two girls, it looks nothing but the food is excellent, usually better to book a table. The old Village restaurant is also worth a visit.
COME ON WIGAN
Sorry
edit.
There's also a sports bar called Vetos (just down from Sciroco on the opposite side) who may have the game on, just ask around the town I'm sure you'll find somewhere to drown your sorrows or celebrate lol.