Only one American has ever won an Olympic gold medal in judo: Kayla Harrison. And she has won two, in London in 2012 and in Rio this year. Yet despite her achievements, Harrison is the country’s second-most famous judoka. No. 1 is her former roommate Ronda Rousey, who won a bronze medal in 2008 and went on to fame, fortune and magazine covers as the highest-profile fighter in mixed martial arts. Now Harrison, 26, plans to follow her into the cage, in the World Series of Fighting organization.
http://www.nytimes.com/2016/12/12/sports/kayla-harrison-judo-word-series-of-fighting.html