Shigeo Nagashima

Оригінальне ім’я: 長島茂雄

Based off of the real professional baseball player by the [same name](https://ja.wikipedia.org/wiki/%E9%95%B7%E5%B6%8B%E8%8C%82%E9%9B%84). His achievements are mentioned a lot in the anime, and he joined the Giants after meeting the trainer.