Additions
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2020 |  | Pedro Marques | FW |  | FC Dordrecht | Dordrecht |
| 07/2019 |  | Ivanildo Fernandes | DF |  | Moreirense FC | Moreirense |
| 07/2019 | | Daniel Bragança | MF |  | SC Farense | SC Farense |
| 07/2019 |  | Edmilson | MF | |||
| 07/2019 |  | Ryan Gauld | MF |  | Hibernian FC | Hibernian FC |
| 07/2019 |  | Guima | MF |  | Académica de Coimbra | Académica |
| 07/2019 |  | Budaq Nasirov | MF |  | Zira FK | Zira FK |
| 07/2019 | | Pedro Ferreira | MF |  | CD Mafra | CD Mafra |
| 07/2019 | | Rafael Barbosa | MF |  | Paços de Ferreira | Ferreira |
| 07/2019 | | Elves Baldé | FW | | Paços de Ferreira | Ferreira |
| 07/2019 |  | Gelson Dala | FW |  | Rio Ave FC | Rio Ave FC |
| 07/2019 | | Ronaldo | FW |  | CD Cova Piedade | CD Cova Piedade |
| 07/2019 |  | Leonardo Ruiz | FW |  | Zorya Lugansk | Zorya Lugansk |
| 07/2019 | | Tiago Rodrigues | FW |  | Sporting CP U19 | Sporting U19 |
Departures
| from | Name | Pos | Team | Team | ||
|---|---|---|---|---|---|---|
| 01/2020 | | Pedro Marques | FW |  | FC Den Bosch | FC Den Bosch |
| 01/2020 |  | Mees de Wit | FW |  | Orihuela CF | Orihuela CF |
| 09/2019 | | Edmilson | MF |  | União Sintrense | União Sintrense |
| 09/2019 | | Leonardo Ruiz | FW |  | Varzim SC | Varzim SC |
| 08/2019 | | Elves Baldé | FW |  | CD Feirense | Feirense |
| 08/2019 | | Gelson Dala | FW |  | Antalyaspor | Antalyaspor |
| 08/2019 |  | Vladimir Stojković | GK |  | GD Estoril | Estoril |
| 08/2019 | | Daniel Bragança | MF | | GD Estoril | Estoril |
| 08/2019 | | João Queirós | DF |  | Willem II | Willem II |
| 08/2019 | | Ivanildo Fernandes | DF |  | Trabzonspor | Trabzon |
| 08/2019 | | Rafael Barbosa | MF | | GD Estoril | Estoril |
| 07/2019 | | Ronaldo | FW |  | FC Penafiel | Penafiel |
| 07/2019 | | Pedro Ferreira | MF | | Varzim SC | Varzim SC |
| 07/2019 | | Ryan Gauld | MF | | SC Farense | SC Farense |
| 07/2019 | | Guima | MF |  | ŁKS Łódź | ŁKS Łódź |
| 07/2019 | | Diogo Sousa | GK |  | Sporting CP | Sporting |
| 07/2019 | | Thierry Correia | DF | | Sporting CP | Sporting |
| 07/2019 |  | Marco Túlio | MF |  | KSV Roeselare | Roeselare |
| 07/2019 | | Miguel Luís | MF | | Sporting CP | Sporting |
| 07/2019 | | Paulinho | MF |  | Boavista | Boavista |
| 07/2019 |  | Jiahao Wang | FW |  | Wolverhampton Wanderers U21 | Wolverhamp. U21 |