ONE Championship's return to Denver has been put on ice.
The promotion announced Friday that ONE 173, which had been scheduled for Aug. 1 at Ball Arena, will not take place and a return to Denver won't happen until June 2026 "after Stamp Fairtex vs. Denice Zamboanga and multiple other title bouts did not materialize." Fairtex's withdrawal was caused by her suffering a setback while rehabbing her surgically repaired knee.
In addition to withdrawing from the fight, ONE announced that Fairtex has agreed to vacate her atomweight championship given her nearly two-year layoff since claiming the then-vacant title in September 2023.