Shōta Imanaga, who got the win for Japan in this year's World Baseball Classic final against the United States, will become a free agent Tuesday and major league teams can sign him through 5 p.m. on Jan. 11.

Naoyuki Uwasawa, a 29-year-old right-handed reliever with the Pacific League's Nippon Ham Fighters, also will become a free agent Tuesday and be available through Jan. 11.