Yuka Tsuji (辻結花, Tsuji Yuka; born (1974-12-11)December 11, 1974) is a Japanese female mixed martial artist whose nickname is Vale Tudo Queen. Tsuji was a prolific female mixed martial artist in the 2000s. Tsuji is a former Smackgirl tournament winner, Smackgirl Lightweight Champion and Valkyrie Featherweight Champion. MMA ranking system portal Fight Matrix ranked Tsuji as the No. 1 pound-for-pound Female Mixed Martial artist in the world in the years 2002, 2004 and 2005. Between 2002 and her retirement from MMA in 2012, she had frequently placed in the Top 5 of women's MMA fighters in flyweight and strawweight classes.
Source: “Yuka Tsuji”, English Wikipedia (CC BY-SA 4.0), excerpt