Seibu Lions announced on the 20th infielder Tyler Nevin will be undergoing separate training due to back stiffness. He had been training separately from the team since the 18th, the fifth day of the fourth training period.

Last season, his first year in Japan, he played in 137 games as the starting first first baseman, batting .277 with 21 Home Run and 63 RBI, leading the team as a key player and earning his first Golden Glove Award.

Regarding this season's members, manager Nishiguchi has stated clearly that "Nevin is the only regular."