Earlier this year, Tonon called out ONE featherweight champion Martin Nguyen.
Former Legacy Fighting Alliance champion Thanh Le made the jump to ONE last year and is 3-0 since.
Janet Todd (ONE kickboxing atomweight world champion)
"The Underground King" debuted for ONE in March of last year when he shockingly lost to Timofey Nastyukhin in the lightweight world grand prix quarterfinals.
"The Warrior" wants to drop down to the featherweight division and face champion Martin Nguyen, to whom Lee has lost twice.