Ronda Rousey by Peggy Sirota for ESPN The Body Issue 2012

Ronda Jean Rousey (born February 1, 1987) is an American professional wrestler, actress, author, and former mixed martial artist and judoka. She is the first and current UFC Women's Bantamweight Champion, as well as the last Strikeforce Women's Bantamweight Champion. She is undefeated, having won eight of her ten fights by armbar. Rousey became the first American woman to earn an Olympic medal in Judo at the Summer Olympics in Beijing in 2008.