Tim McGraw has a football challenge going on this week with legendary NFL player Brett Favre. 

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On Tuesday CMT announced that the stars are trying to see who can get more followers on the sports social media site Sqor.

As an athlete and a member of the site's board of directors, Favre has the obvious edge. That hasn't stopped McGraw, however, from accepting the challenge and putting his own spin on the terms.

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If McGraw reached 10,000 followers on Sqor first by April 1, then Favre will have to sing a line from the country star's 2010 hit Felt Good On My Lips.

If Favre wins, however, then McGraw will have to wear the football player's Green Bay Packers jersey for 24 hours. "Faith will be kicking you out. That is, if I win," teased Favre in his good-natured, though highly competitive challenge. "Good luck."

Though a musician at heart, McGraw has a little experience when it comes to football. He used to play the sport in school and even starred in the Oscar-winning football film The Blind Side alongside Sandra Bullock.

So will Hill stand by her man if he loses? Or will she be kicking him to the curb? Married since 1996, the pair have three daughters and continue to fight off rumors that they are headed towards a split.

Perhaps this bet might just help to settle that talk for good.