Let's make this birthday one to remember.

31 years old (Born on August 18, 1993)

Happy Birthday, Sergio Pettis! From capturing the inaugural RFA Flyweight Championship back on June 21, 2013—when most of us were still figuring out how to throw a decent punch—you've been delivering knockouts and submissions like they're birthday cakes. Seriously though, your opponents probably wish you'd celebrate by taking up knitting instead.

Here's hoping this year brings you even more success in the cage (and fewer bruises outside it). Keep dazzling fans with those lightning-fast moves that make gravity jealous. Enjoy your day champ; may all punches thrown today be aimed solely at piñatas filled generously with candy!