Justin Bieber Snubbed Ronda Rousey’s Little Sister | Cosmopolitan October 8, 2015 MySportsGeeks 13 UFC Bantamweight Champion Ronda Rousey shares the story of when she met Justin Bieber at the Cannes Film Festival earlier this year. Share your stories below! (13) Read more ICYMI: Cynthia Calvillo Suspended by USADA For Marijuana Use