Panamanian Luis “Nica” Conception and the Mexican Hernan “Tyson” Marquez both weighed in at 112 pounds and are ready to for ward this Saturday at the Arena Robert Duran. “Tyson” Marquez (29-2-0, 22 KOs), 22-years-old, will challenge Concepcion (22-1-0, 17 ko’s), 26, for the WBA flyweight title.