By Hisao Adachi

On Saturday in Yokohama, Japan, Panama's Celestino "Pelenchín" Caballero (35-4, 23 KOs) will defend his World Boxing Association (WBA) featherweight crown against Japan's Satoshi Hosono (21-1, 15KOs) who lost once in his career against Thai veteran Poonsawat Kratingdaenggym in January 2010.

If Caballero comes through with a win in his first defense of the title, he plans to explore another title opportunity at super featherweight. He hopes to get a shot at the winner of the co-main event.

The co-main event will feature undefeated Takashi Uchiyama (17-0, 14KOs)  defending the WBA's super featherweight title for the fourth time against Jorge "Coloradito" Solis (40-3-2, 29KOs).

Caballero will likely seek permission from the WBA to move up in weight for a shot at Uchiyama, a move that prevents that keeps his current title safely around his waist - if he loses.