While the Duke Blue Devils celebrate winning the National Championship in men's basketball, one NFL quarterback has to fulfill a big promise.

SportingNews reports that Duke center Jahlil Okafor and Dallas Cowboys quarterback Tony Romo made a deal early last year to win championships in their respective sports. The source comes from a post on Okafor's Instagram featuring a selfie with Romo at a Duke game.

“Selfie with Tony Romo last night at the Duke game. Said he’s apart of the Duke fam too. Our deal is for me to win a national championship next year and for him to win the Super Bowl. #Duke #Cowboys #ItsJustDifferent.” Okafor wrote.

Romo has been a supporter of Duke basketball for quite some time, even appearing at the National Championship game on Monday night to cheer on the team. Romo is coming off one of the best seasons of his career in which he helped lead the Cowboys to the playoffs for the first time in five years.

With star running back DeMarco Murray signing with the Philadelphia Eagles during the offseason, Romo may have his hands full trying to fulfill his end of the deal.