Rousey has been knocked out two fights in a row.
Rousey's loss against Nunes was her second consecutive defeat.
Rousey has been absent from the octagon since losing to Miesha Tate.
The 'Metroid' character popularized strong females in video games.
The Irishman will fight for the UFC lightweight belt in March.
The former heavyweight champion of the world knows what an upset fight loss feels like.
The UFC featherweight champion has wasted little time in taunting his next opponent.
The fight is reportedly to take place at the MGM in Las Vegas on March 5.
Holm defeated defending champ Ronda Rousey with a kick to the head.
Holm kicked Rousey in the head in the second round.