Former Kansas City Chiefs star Tyrann Mathieu wasn't an avowed Swiftie while the superstar was crisscrossing the globe on her historic Eras Tour. That may have changed on Monday, December 15, when Mathieu, 33, caught a clip of her Eras Tour docuseries, The End of an Era. In the clip, Taylor Swift is addressing a group of her dancers and presenting each with their bonus checks. We don't know exactly how much she gave each individual, but based on their reactions, the totals could have been staggering. "A master class in leadership!" Mathieu wrote via X as he shared the clip.