UFC president Dana White says Georges St-Pierre is out with colitis, which could leave him on the sidelines for a while.

“They called me yesterday and I think it’s out that he has colitis,” White told reporters after The Ultimate Fighter 26 finale on Friday night. “So he’s out for a minute.”

St-Pierre confirmed the diagnosis in a Facebook post on Saturday.

I now understand the health issues that I had during my last training camp… I hoped my condition would improve after the fight but unfortunately it got worse and I had to go straight to the hospital for a colonoscopy when I came back from vacation last Wednesday. The diagnosis is ulcerative colitis and I am now taking medication that will hopefully appease the symptoms. My health is my #1 priority right now, I’m still a very happy man, thanks for your support!!!

St-Pierre made his return to the octagon at UFC 217 after a four-year hiatus, defeating Michael Bisping to win the middleweight title.