The 23-year-old right-hander whose fastball tops 100 mph will join fellow Japanese stars Shohei Ohtani and Yoshinobu Yamamoto.

Morii agreed Wednesday to a minor league contract with the Athletics that includes a signing bonus of $1,510,500.

Mastrobuoni, 29, hit .194 with four RBIs in 50 games for Chicago last year. He can play second base, third, shortstop and the ...