Stamp Fairtex is set to face former teammate Denice Zamboanga in an atomweight title fight at ONE 166, in Qatar on March 1.
The 26-year-old will be making the first defence of the title she won by beating Seo Hee Ham at ONE Fight Night 14, a victory that made her just the second fighter to wear the belt, Angela Lee announced her retirement a few days earlier.
Stamp (11-2) won the atomweight grand prix in 2021, and the following year she was handed a shot at reigning champion Lee, but was submitted in the second round at ONE: X.
That was the last time the Thai fighter lost. She rebounded from the defeat to Lee to win her next three fights, culminating in the second round stoppage win over Ham.
Zamboanga has a history with both Lee and Ham. She was pencilled in to face the former in an atomweight title fight in 2020, but the bout fell through when the champion announced she was pregnant.
In her absence, ONE Championship put together an atomweight grand prix, in which Zamboanga controversially lost by split decision to Ham in the quarter-finals.
The Filipino (10-2), who trained at Fairtex Gym in Pattaya alongside Stamp but left when they were both booked for the grand prix, comes into this bout on a two-fight winning streak.
ONE has also added another fight to the card, with Tye Ruotolo defending his welterweight title against promotional newcomer Izaak Michell under submission grappling rules.
In total there will be five titles on the line at the Lusail Arena, with Anatoly Malykhin fighting Reinier de Ridder in a rematch that will have the middleweight MMA belt on the line in the main event.
In other contests, a featherweight unification MMA fight will pit interim champion Than Le against regular champion Tang Kai in another rematch.
There is one too in the strawweight division, where current champion Jarred Brooks will be looking to beat former champion Joshua Pacio for the second time.
ONE 166 fight card (MMA unless stated): Reinier de Ridder v Anatoly Malykhin (for middleweight title); Stamp Fairtex v Denice Zamboanga (for atomweight title); Tang Kai v Thanh Le (for featherweight title); Jarred Brooks v Joshua Pacio (for strawweight title); Tye Ruotolo v Izaak Michell (Submission Grappling, for welterweight title); Amir Aliakbari v Arjan Bhullar (heavyweight); Osamah Almarwai v Cleber Sousa (Submission Grappling, flyweight).
