Georges St-Pierre’s reign at middleweight is over before it ever really started.

GSP vacated the 185-pound title only a few weeks after defeating Michael Bisping for the belt. With the decision, the UFC crowned Robert Whittaker the undisputed champion, a title he’ll defend vs. Luke Rockhold at UFC 221 next year.

“My fight at UFC 217 was one of the greatest nights of my life but I now need to take some time to focus on my health,” St-Pierre said.. “Out of respect to the athletes and the sport, I don’t want to hold up the division. I will be giving up my belt and once I’m healthy I look forward to working with the UFC to determine what’s next in my career.”

St-Pierre, who is also a former welterweight champion, was diagnosed with ulcerative colitis last week. He joined Conor McGregor, BJ Penn and Randy Couture as the only fighters to win UFC titles in multiple weight classes.

UFC 221 takes place February 10 from Perth, Western Australia. Whittaker won the interim title when he defeated Yoel Romero earlier this year.