A lightweight title challenger and No. 1 contender will be crowned at “ONE Championship 66: Warriors of the World.” Officials today announced a fight between Shannon Wiratchai (8-1) and Rasul Yakhyaev (10-6). ONE Championship 66 takes place Dec. 9 at Impact Arena in Bangkok, Thailand, and the event streams as an online pay-per-view in North America. Related ONE Championship's November lineup? Open-weight fight, champ-vs.champ, retirement title bout Wiratchai, a 28-year-old Thai fighter, has won six straight fights – all under the ONE Championship banner