Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2018 |  | Gonçalo Ferreira | MF | |||
| 01/2018 | | Rogério Varela | FW | |||
| 07/2017 | | Diogo Almeida | GK | |||
| 07/2017 | | Babacar Fati | DF | |||
| 07/2017 | | Eduardo Quaresma | DF | |||
| 07/2017 | | Mamede | DF |  | Sporting CP U15 | U15 |
| 07/2017 | | Rafael Fernandes | DF | | Sporting CP U15 | U15 |
| 07/2017 | | Rodrigo Rêgo | DF | |||
| 07/2017 | | Daniel Rodrigues | MF | |||
| 07/2017 | | Duarte Carvalho | MF | | Sporting CP U15 | U15 |
| 07/2017 | | Gonçalo Batalha | MF | |||
| 07/2017 | | João Daniel | MF | |||
| 07/2017 | | Bruno Tavares | FW | | Sporting CP U15 | U15 |
| 07/2017 | | Fábio Ronaldo | FW |  | Rio Ave FC U17 | U17 |
| 07/2017 | | Nuno Mendes | FW | |||
| 07/2017 | | Tiago Tomás | FW | | Sporting CP U15 | U15 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 07/2017 | | Rafael Bandeira | DF |  | Juventus U17 | U17 |
| 07/2017 | | Rafael Claudio | GK |  | FC Porto U17 | U17 |
| 07/2017 | | Diogo Brás | DF |  | Sporting CP U19 | Sporting U19 |
| 07/2017 | | Gonçalo Costa | DF | | Sporting CP U19 | Sporting U19 |
| 07/2017 | | João Goulart | DF | | Sporting CP U19 | Sporting U19 |
| 07/2017 | | Tiago Djaló | DF |  | Sporting CP B | Sporting B |
| 07/2017 | | Benny | MF | | Sporting CP U19 | Sporting U19 |
| 07/2017 | | Chiquinho | FW |  | GD Estoril U19 | U19 |
| 07/2017 | | Miguel Velosa | FW |  | Paços de Ferreira U19 | Paços U19 |
| 07/2017 | | Tiago Rodrigues | FW | | Sporting CP U19 | Sporting U19 |