Issei Ishii (石井一成, Ishii Issei; born September 15, 1998) is a Japanese kickboxer and Muay Thai fighter. He is a former K-1 Bantamweight Champion and WBC Muay Thai world champion.
Source: “Issei Ishii”, English Wikipedia (CC BY-SA 4.0), excerpt
Issei Ishii (石井一成, Ishii Issei; born September 15, 1998) is a Japanese kickboxer and Muay Thai fighter. He is a former K-1 Bantamweight Champion and WBC Muay Thai world champion.
Source: “Issei Ishii”, English Wikipedia (CC BY-SA 4.0), excerpt