The Arizona Diamondbacks signed Japanese free agent closer Yoshihisa Hirano to a two-year, $6 million contract, the team announced Friday.The 33-year-old right-hander, who primarily throws a fastball and splitter, had spent his entire 11-year career with the Orix Buffaloes of Japan's Pacific League, recording a 48-69 record with a 3.10 ERA in 549 appearances."I am honored to be signing with the Arizona Diamondbacks. They have welcomed me and my family with open arms and made us feel at home already, which is the reason I chose to sign here," Hirano said through the club."My family is lookin…READ FULL ARTICLE