Sterling reportedly pulled out of the matchup due to some lingering neck issues stemming from an old injury.
Yan, the former bantamweight champion, reacted to the news on social media.
The two were set to collide in an immediate rematch following the controversial result of their first bantamweight title bout at UFC 259 which saw Sterling win the belt via disqualification. He is, to date, the only UFC fighter to win a title via DQ.
Yan is now without an opponent just one month out from the UFC 267 event which is the first numbered UFC event in eons to NOT be a pay-per-view, you can catch the event on ABC and ESPN+. It is scheduled to take place on Oct. 30 at the Etihad Arena in Abu Dhabi, United Arab Emirates. The event will be headlined by a light heavyweight title bout between reigning champion Jan Blachowciz and former title challenger Glover Teixeira.