The NFL seemed to deny the scientific premise that footballs lose air pressure because of weather conditions when it waged its deflate-gate war against Tom Brady and the New England Patriots last season.
But with temperatures reaching sub-zero temperatures for the Seattle Seahawks-Minnesota Vikings, the league appears wiling to suspend it's disbelief on Sunday.
According to ESPN's Sal Palantonio, officials at TCF Bank Stadium — where temperatures might not rise above 0 degrees for Sunday's wild-card game — are concerned that the game balls could deflate below the 12.5-PSI floor.
To combat this, they're apparently switching out footballs at halftime with ones that have been left in the toasty locker room.