Samurai Japan scored two runs in the bottom of the ninth to beat Puerto Rico 3-2 in their final tune-up ahead of the Premier12. Japan faces South Korea in the official opening match on Sunday at the Sapporo Dome. On Friday in Fukuoka Puerto Rico took an early lead in the first, when Jay Gonzalez scored on a balk. They doubled the score in the fourth through a sac fly by Jorge Jimenez. Japan got on the board in the sixth. In the ninth Shogo Akiyama first tied the contest with a RBI single and then Motohiro Shima ended the game in walk-off style with his hit.