Watch Ronda Rousey’s Amateur MMA Debut

UFC women's champ Ronda Rousey is an MMA star today, but just like everyone else, she had to work her way up from the bottom to get to where she's at today.

A grainy video surfaced recently, allowing fans to check out Rousey's amateur debut, in which she submits Hayden Munoz in a matter of 21 seconds.

This fight went down on August 6, 2010, when Rousey was a part of Combat Fight League's Ground Zero.