JonJon Estrada working with former WBO world champ Tomoki Kameda today in Osaka.
Kameda is known as "El Mexicanito" The Little Mexican, whilst Estrada has achieved cult status as "the Wolverine "
Based on the ring monikers, you know that their sparring was no place for the faint hearted!
Tomoki Kameda returns to the ring on July 30 against William Encarcion, and will look to add to his impressive resume of 38 wins and 20 knockouts.
The Philippines Estrada is likely to fight in Japan on July 23, carrying a record of 15 wins, 14 by sadistic stoppage!