Robert Whittaker-Luke Rockhold title fight set for UFC 221 after Georges St-Pierre vacates

There are no more lingering questions surrounding the UFC middleweight championship.

The promotion announced Thursday night that Georges St-Pierre has vacated his championship belt just one month after winning it, and an undisputed title fight between previous interim champ Robert Whittaker and ex-champ Luke Rockhold is set for UFC 221.

UFC 221 takes place Feb. 10 at Perth Arena in Perth, Australia, and airs on pay-per-view following prelims on FS1 and UFC Fight Pass.

More to come.

For more on UFC 221, check out the UFC Rumors section of the site.