Welcome to FTW Explains, a guide to catching up on and better understanding stuff going on in the world. You may have spent a long time using the name "Cinderella" to describe an underdog team winning a lot in March Madness. But if you're stopping and wondering what’s up with that? We’re here to help.

Four experts pick their Cinderella upset team to ruin March Madness and make the NCAA Final Four in San Antonio to help you fill out your bracket.