Senior Director of One Championship Public Relations Loren Mack notified Sherdog.com of the news Tuesday morning.
The undefeated Gafurov (12-0, 8 Sub) has finished all three of his One Championship opponents inside the opening period. The 30-year-old Dagestani has six first-round stoppages in his professional mixed martial arts career.
Jadambaa (10-3, 4 Sub) has not fought since besting Koji Oishi in August of 2014. The 39-year-old Mongolian is 2-0 under the One Championship banner.