Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2021 |  | Jindřich Musil | GK |  | Slovan Liberec U17 | U17 |
| 07/2021 | | Radek Novák | GK | | Slovan Liberec U17 | U17 |
| 07/2021 | | Matěj Polcar | GK | | Slovan Liberec U17 | U17 |
| 07/2021 | | Martin Kuľha | DF | |||
| 07/2021 | | Jindřich Machotka | DF | |||
| 07/2021 | | Filip Netušil | DF | |||
| 07/2021 |  | Igor Wydrzynski | DF | |||
| 07/2021 | | Matyáš Bartoš | MF | |||
| 07/2021 | | Jakub Hudák | MF | | Slovan Liberec U17 | U17 |
| 07/2021 | | Lukáš Kočka | MF | |||
| 07/2021 | | Milan Lexa | MF | |||
| 07/2021 | | Petr Papoušek | MF | |||
| 07/2021 | | Vojtěch Musil | FW | | Slovan Liberec U17 | U17 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 08/2021 | | Tomáš Stibor | MF |  | FK Jablonec U19 | U19 |
| 07/2021 | | Lukáš Pešl | GK |  | Slovan Liberec B | Slovan Liberec B |
| 07/2021 |  | David Horňáček | DF | | Slovan Liberec B | Slovan Liberec B |
| 07/2021 | | Jiří Ješeta | DF | | Slovan Liberec B | Slovan Liberec B |
| 07/2021 | | Maxmilián Jiří Kytka | MF | | Slovan Liberec B | Slovan Liberec B |
| 07/2021 | | Jan Málek | MF | | Slovan Liberec B | Slovan Liberec B |
| 07/2021 | | Milan Králíček | FW | | Slovan Liberec B | Slovan Liberec B |