| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Azbe Jug | 1992-03-03 | 191 | 92 | 2020 jun | ||
| GK | Luís Ribeiro | 1992-04-19 | 192 | 81 | |||
| GK | Marcelo Boeck | 1984-11-25 | 191 | 81 | 2016 jun | ||
| GK | Romain Salin | 1984-07-29 | 185 | 71 | 2017-06-30 | ||
| GK | Rui Patrício | 1988-02-15 | 188 | 84 | 2022-06-30 | ||
| D | André Geraldes | 1991-05-02 | 181 | 69 | 2019 jun | ||
| D | Bruno Paulista | 1995-08-21 | 189 | 71 | 2020-06-30 | ||
| D | Cristiano Piccini | 1992-09-26 | 182 | 77 | |||
| D | Jefferson Nascimento | 1988-07-05 | 176 | 72 | 2017 jun | ||
| D | Jérémy Mathieu | 1983-10-29 | 189 | 82 | |||
| D | João Pereira | 1984-02-25 | 172 | 64 | |||
| D | Jonathan Silva | 1994-06-29 | 175 | 69 | 2019 jun | ||
| D | Rami Rabia Hesham | 1993-05-20 | 186 | 86 | 2020 jun | ||
| D | Ricardo Esgaio | 1993-05-16 | 171 | 66 | 2018-06-30 | ||
| D | Tobias Figueiredo | 1994-02-02 | 182 | 68 | 2021-06-30 | ||
| M | Héldon | 1988-11-14 | 174 | 68 | Loan | ||
| M | William Carvalho | 1992-04-07 | 186 | 87 | 2020-06-30 | ||
| F | Bas Dost | 1989-05-31 | 192 | 85 | 2020-06-30 | ||
| F | Luc Castaignos | 1992-09-27 | 188 | 78 | 2019-06-30 | ||
| F | Lukas Spalvis | 1994-07-27 | 187 | 78 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Seydou Doumbia (F) | Sporting Club de Portugal | AS Roma | Confirmed | |
| 30.Jun | Carlos Mané (F) | VfB Stuttgart | Sporting Club de Portugal | Confirmed | |
| 30.Jun | Joel Campbell (F) | Sporting Club de Portugal | Arsenal FC | Confirmed | |
| 30.Jun | Ewerton (D) | FC Kaiserslautern | Sporting Club de Portugal | Confirmed | |
| 31.Aug | Lazar Markovic (M) | Liverpool FC | Sporting Club de Portugal | Confirmed | |
| 31.Aug | Naldo (D) | Sporting Club de Portugal | FK Krasnodar | Confirmed | |
| 31.Aug | Islam Slimani (F) | Sporting Club de Portugal | Leicester City | Confirmed | |
| 31.Aug | Carlos Mané (F) | Sporting Club de Portugal | VfB Stuttgart | Confirmed | |
| 31.Aug | Ewerton (D) | Sporting Club de Portugal | FC Kaiserslautern | Confirmed | |
| 29.Aug | Luc Castaignos (F) | Eintracht Frankfurt | Sporting Club de Portugal | Confirmed |