There has long been tension between UFC women’s bantamweight champion Ronda Rousey and Invicta FC featherweight champion Cris Cyborg , as their willingness to fight each other. Rousey vs. Cyborg was the first big fight that the UFC wanted to try and put together when it instituted the women’s 135-pound division early last year.
See more here:
Cris Cyborg Dropping to 135 Pounds to Retire Ronda Rousey, “Like I Did Gina Carano” – MMA Weekly