On the 28th, the Rakuten Eagles announced that pitcher coach Chikara Onodera will be leaving the team. On the same day, they also announced that pitcher coach Takahiro Shiomi will be stepping down from his position.

Onodera joined the Rakuten Eagles as a pitcher coach starting this season. He primarily provided instruction for the first team during the first half of the season, and from June onwards, he was involved in player development with the farm team.

Shiomi, who is stepping down, took office as a pitcher coach for the Rakuten Eagles starting this season. He was primarily providing guidance at the farm team level.