A potentially big middleweight division bout has been added to UFC 184 as Ronaldo Souza battles Yoel Romero. Souza is currently undefeated in UFC competition and he is a former Strikeforce Middleweight Champion. Romero is also undefeated in the UFC, coming off of a controversial win over Tim Kennedy at UFC 178 earlier this year. UFC 184 takes place on February 28th from the Staples Center in Los Angeles, California with Chris Weidman and Vitor Belfort headlining.