Disney movies notwithstanding, the most common tale in sports isn’t a happy one: The wealthy, winning teams get all the glory while the underdogs languish in obscurity. The story holds true in robotics competitions as well. When it comes to tech Frankensteins battling each other to the death, like at the annual RoboGames (formerly Robolympics) in San Francisco, the well-funded teams tend to come out on top.But every now in then, the underdog wins it all. We caught up with Hugo Martinez and Luis Reyna, the first Mexicans ever to compete at the Robolympics, right after they swept the podium for the Mini Sumo event at the 2008 contest, beating out numerous better-funded Asian and European teams. The two amateur engineers shared their trials and tribulations, including having to rebuild their robots at the games after they were smashed on the flight en route to the games. It’s one heck of a tale, and a steadfast reminder that it’s always fun to see the little guy win, especially when the winning involves sumo robots.