He's only been on Instagram for 3 weeks, but Muhammad Ali has already posted his very first selfie.
The 72-year-old champ was decked out in Louisville shirt to cheer on the Cardinals as they took on the Kentucky Wildcats this weekend.
Ali wrote, "#Louisville Game Day! Go Cards!"
It's the first time Ali has posted a new photo on any social media platform since he joined Twitter in 2010.
BTW -- Louisville ended up beating Kentucky 44-40 and now they're bound for a bowl game.