The highly anticipated bout between longtime middleweight rivals Luke Rockhold and Michael Bisping. Rockhold is currently undefeated in UFC competition and he is a former Strikeforce Middleweight Champion. Bisping has rotated wins and losses in his last seven UFC appearances, with his last fight being a win over Cung Le at UFC Fight Night: Bisping vs. Le. UFC Fight Night 55 takes place on November 8th from the All Phones Arena in Sydney, Australia with the aforementioned fighters headlining.