An injury has forced Frankie Edgar to pull out of his UFC featherweight title fight against Max Holloway at UFC 218 on Dec. 2 in Detroit.

Both fighters have acknowledged the cancellation on social media. Edgar wrote on Instagram, “Hit with a minor setback but should be back to full contact in six weeks or so. Thanks to the @ufc for always having my back. Max I’ll see you down the road. #Believe”

Edgar (21-5-1, 16-5-1 UFC), a former UFC lightweight champion, was going to make his third attempt at winning the 145-pound title after losing twice to Jose Aldo.

Holloway (18-3, 14-3) knocked out Aldo in the third round to unify the UFC featherweight title in June after winning the interim title last December.

He wrote on Twitter, “injuries are part of this fight game. Frankie’s the man. Wish him a speedy recovery.”

Holloway went on to proclaim he’s fighting in Detroit anyway, although the UFC hasn’t commented on a potential replacement. Aldo, ranked as the No. 1 contender at 145 pounds, ahead of Edgar, is scheduled to fight No. 3 Ricardo Lamas. No. 4 Cub Swanson has a fight scheduled against No. 6 Brian Ortega on Dec. 9.

No. 5 Chan Sung Jung, who hasn’t fought since a win in February, is the highest ranked featherweight without a fight currently lined up.

Injuries are part of this fight game. Frankies the man. Wish him a speedy recovery

— Max Holloway (@BlessedMMA) November 9, 2017

Detroit, you guys are a bunch of tough mfers. I met many of you last month when we visited. You guys deserve the best fight card of the year and youre still gonna get it. I'm fighting no matter what

— Max Holloway (@BlessedMMA) November 9, 2017

Santa is still coming early to Detroit, so get ready. Malice in the palace part 2 if we have to. I'll see you soon

— Max Holloway (@BlessedMMA) November 9, 2017