Shinjiro Hiyama is scheduled to travel with the Ni-gun team on their three-game road trip against Chunichi that begins on Tuesday.
Minoru Iwata will likely pitch in one more game before the start of the regular season: against the Seattle Mariners on March 25.
The Tigers decided to send Takashi Shimizu to Ni-gun on Sunday to make room for Akihito Fujii.
Tomoaki Kanemoto temporarily returned to Osaka on Saturday and worked out at Koshien on Sunday. He will rejoin the Ichi-gun team on Wednesday.