One of four current unified titlists from Puerto Rico, Santiago, 15-4 (9 KOs), wrapped up his training camp with a spirited open workout in Guaynabo. It was his final session before he and his team departed from San Juan to Tokyo, where Santiago will risk his WBA and WBO 108lbs titles versus former WBO 105lbs belt holder Masataka Taniguchi on April 3 at Korakuen Hall.