You could score four tickets to see the Minnesota Vikings battle Green Bay at U.S. Bank Stadium Monday, December 23—but only if you have the Mystic Lake app!

This exclusive contest is open to fans who attend a Minnesota Vikings home game through December 8 (excluding October 24). Before you head to the game, download the Mystic Lake app and make sure to enable push notifications and location services.

After you arrive at the stadium on game day, you’ll get a push notification with a link to enter the Border Blitz Ticket Contest. SKOL!

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