Since Michael Bisping won the middleweight title at UFC 199 in 2016 after knocking out Luke Rockhold, the title has been up for grabs a total of two times. The first of them being Bisping’s first title defence against Dan Henderson at UFC 204. Bisping’s second defence came at UFC 217 against Georges St-Pierre. Bisping failed to defeat GSP that night, losing by rear-naked choke in the third round. This made GSP the new middleweight champion. He was expected to unify the titles with interim middleweight champion, Robert Whittaker, in early 2018.