Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2019 |  | Gōtoku Sakai | DF |  | Hamburger SV | Hamburg |
| 08/2019 | | Noriaki Fujimoto | FW |  | Oita Trinita | Oita Trinita |
| 07/2019 | | Daiju Sasaki | MF |  | Palmeiras U20 | U20 |
| 07/2019 | | Hiroki Iikura | GK |  | Yokohama F. Marinos | Marinos |
| 07/2019 |  | Thomas Vermaelen | DF |  | FC Barcelona | Barcelona |
| 07/2019 |  | Joan Oumari | DF |  | Al Nasr SC | Al Nasr SC |
| 06/2019 |  | Sebastian Hahn | AS-CO | |||
| 06/2019 | | Masaki Morass | AS-CO | |||
| 06/2019 | | Thorsten Fink | MA | |||
| 04/2019 | | Kakeru Yamauchi | MF |  | Vissel Kobe U18 | U18 |
| 04/2019 | | Takayuki Yoshida | MA | |||
| 04/2019 | | Tetsushi Yamakawa | DF |  | Tsukuba University | Tsukuba University |
| 04/2019 | | Yutaro Oda | FW | |||
| 03/2019 |  | Samper | MF | | FC Barcelona | Barcelona |
| 02/2019 |  | Dankler | DF |  | Vitória Setúbal | Vitória FC |
| 01/2019 | | Daigo Nishi | DF |  | Kashima Antlers | Kashima Antlers |
| 01/2019 | | Genta Ito | GK | |||
| 01/2019 | | Ryo Hatsuse | DF |  | Gamba Osaka | Gamba |
| 01/2019 | | Yuya Nakasaka | MF |  | CF Peralada | CF Peralada |
| 01/2019 | | Hotaru Yamaguchi | MF |  | Cerezo Osaka | Cerezo |
| 01/2019 | | David Villa | FW |  | New York City FC | NY City FC |
| 01/2019 | | Keijiro Ogawa | FW |  | Shonan Bellmare | Shonan Bellmare |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 09/2019 | | Ryo Hatsuse | DF |  | Avispa Fukuoka | Avispa |
| 08/2019 | | Yuya Nakasaka | MF |  | Kyoto Sanga FC | Kyoto |
| 08/2019 | | Daiki Miya | DF |  | Mito HollyHock | Mito HollyHock |
| 07/2019 |  | Seung-gyu Kim | GK |  | Ulsan HD FC | Ulsan HD FC |
| 07/2019 | | Yuki Kobayashi | DF |  | FC Machida Zelvia | Machida Zelvia |
| 07/2019 | | Hirotaka Mita | MF |  | FC Tokyo | FC Tokyo |
| 07/2019 | | Masatoshi Mihara | MF |  | Kashiwa Reysol | Kashiwa Reysol |
| 02/2019 | | Masahiko Inoha | DF |  | Yokohama FC | Yokohama FC |
| 02/2019 | | Kunie Kitamoto | DF |  | Simork FC | Simork FC |
| 02/2019 |  | Ahmed Yasser | DF |  | Al Duhail SC | Al Duhail |
| 01/2019 | | Naoyuki Fujita | MF | | Cerezo Osaka | Cerezo |
| 01/2019 |  | Theeratorn Bunmatan | DF |  | Muangthong United | Muangthong Utd |
| 01/2019 | | Yoshiki Matsushita | MF |  | Vegalta Sendai | Vegalta Sendai |
| 01/2019 | | Shunki Takahashi | MF | | Kashiwa Reysol | Kashiwa Reysol |
| 01/2019 | | Shun Nagasawa | FW | | Vegalta Sendai | Vegalta Sendai |
| 01/2019 | | Shuhei Otsuki | FW |  | Montedio Yamagata | Montedio Yamagata |