Tampa Bay Buccaneers quarterback Baker Mayfield appeared at a recent media availability wearing University of Michigan gear. The choice of clothing was not a personal preference, but rather the fulfillment of a bet made with Buccaneers head coach Todd Bowles. The wager centered on the Week 2 college football matchup between the Oklahoma Sooners—Mayfield’s alma mater—and the Michigan Wolverines.

Michigan defeated Oklahoma in that contest, triggering the terms of the bet. Mayfield, who played for Oklahoma during his collegiate career, was required to wear the colors of the opposing team as a consequence of the loss. The lighthearted incident highlights the ongoing collegiate sports rivalries that persist among NFL players and coaching staff members.