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| Transfers |
 Lech Poznan 35,000,000 < >  Kaiserslautern |
| PML | > | LUCAS Lopes BERALDO | CB/LB | BRA | 64 | 96 | 24/11/03 (20) | 88 | 1.82 | 77 | Kaiserslautern | 7.38 | 16380 | | | | 2 | 0 | 5230 | 0 | +3 | |
 Vitória Setúbal 12,000,000 < > Kaiserslautern |
| HYF | > | Ricardo Jorge da Luz HORTA | RW/WS | POR | 65 | 87 | 15/09/94 (30) | 93 | 1.73 | 61 | Kaiserslautern | | 21600 | | | | 0 | 0 | 4075 | 0 | +3 | |
 Liverpool 8,000,000 < > Newcastle United |
| RFV | > | Jarrod BOWEN | RW/CS | ENG | 67 | 81 | 20/12/96 (27) | 90 | 1.74 | 70 | Newcastle United | | 33960 | 8 | | | 0 | 0 | 6655 | 1 | +2 | |
| LJJ | < | Marcus TAVERNIER | LW | ENG | 62 | 98 | 22/03/99 (25) | 95 | 1.78 | 70 | Liverpool | | 12160 | | | | 0 | 0 | 3645 | 0 | | |
 FC Basel 6,200,000 < > Newcastle United |
| PVL | > | PAU Francisco TORRES | CB | ESP | 67 | 97 | 16/01/97 (27) | 91 | 1.92 | 81 | Newcastle United | 7.07 | 33960 | | | | 2 | 0 | 4505 | 0 | +2 | |
| YHA | < | Abdou DIALLO | CB/LB | SEN | 63 | 91 | 04/05/96 (28) | 88 | 1.87 | 72 | FC Basel | 6.90 | 15040 | | | | 1 | 0 | 2385 | 0 | | |
| Flamengo 21,000,000 < > Newcastle United |
| CHF | > | Antoine GRIEZMANN | CS/AM | FRA | 70 | 95 | 21/03/91 (33) | 87 | 1.72 | 72 | Newcastle United | 7.71 | 57400 | | | | 3 | 0 | 5070 | 3 | +2 | |
| TPI | > | Alessio ROMAGNOLI | CB/LB | ITA | 66 | 98 | 12/01/95 (29) | 87 | 1.85 | 75 | Newcastle United | | 26420 | | | | 1 | 0 | 3435 | 0 | +2 | |
| GAG | > | Lucas Francois Bernard HERNÁNDEZ Pi | CB/LB | FRA | 68 | 99 | 14/02/96 (28) | 88 | 1.80 | 75 | Newcastle United | 7.43 | 45940 | | | | 2 | 0 | 4865 | 1 | +2 | |
Paris SG < >  Anderlecht |
| INR | < | Ikoma 'Loďs' OPENDA | CS | BEL | 66 | 99 | 16/02/00 (24) | 91 | 1.74 | 79 | Paris SG | 7.21 | 27020 | | | | 4 | 0 | 8005 | 5 | +4 | |
| LSE | > | Victor OSIMHEN | CS | NGA | 67 | 86 | 29/12/98 (25) | 89 | 1.85 | 77 | Anderlecht | 7.00 | 32960 | 30 | | | 2 | 0 | 8745 | 0 | +4 | |
 Estudiantes (LP) < > 3,210,000 Anderlecht |
| MHK | < | Lucas MARTÍNEZ QUARTA | CB | ARG | 65 | 0 | 10/05/96 (28) | 89 | 1.81 | 75 | Estudiantes (LP) | | | | | | | | 3185 | | | |
| Racing Club < > 2,360,000 Anderlecht |
| JNQ | < | Gino INFANTINO | AM/LW | ARG | 56 | 0 | 19/05/03 (21) | 85 | 1.79 | 74 | Racing Club | | | | | | | | 2230 | | | |
| Paris SG < > Lille |
| EDX | < | William Joel PACHO Tenorio | CB | ECU | 64 | 93 | 16/10/01 (22) | 89 | 1.86 | 81 | Paris SG | | 16780 | | | | 0 | 0 | 4355 | 0 | +4 | |
| XEL | > | Castello LUKEBA | CB | FRA | 64 | 94 | 17/12/02 (21) | 86 | | | Lille | | 16880 | | | | 2 | 0 | 4795 | 0 | +4 | |
| Fluminense < > Benfica |
| GCO | > | JOĂO PEDRO Junqueira de Jesus | St/LW | BRA | 63 | 96 | 26/09/01 (23) | 97 | 1.82 | 70 | Benfica | | 17140 | | | | 0 | 0 | 5850 | 0 | +4 | |
| OGX | < | Karim KONATÉ | St | CIV | 59/61 | 9 | 21/03/04 (20) | 76 | | | Fluminense | | | | | | | | 5885 | | | |
| QXZ | < | Matt O'RILEY | CM | DEN | 63 | 1 | 21/11/00 (23) | 89 | 1.87 | 77 | Fluminense | | | | | | | | 5015 | | | |
| Aston Villa 8,000,000 < > Deportivo |
| NQQ | > | Jhon Jader DURÁN Palacio | St | COL | 62 | 81 | 13/12/03 (20) | 95 | 1.85 | 73 | Deportivo | 6.21 | 12560 | | | | 4 | 1 | 6795 | 1 | +4 | |
| LNI | < | Timo WERNER | St | GER | 65 | 91 | 06/03/96 (28) | 83 | 1.80 | 75 | Aston Villa | | 20100 | | | | 1 | 0 | 5465 | 0 | | |
 Crvena Zvezda 2,500,000 < >  IFK Göteborg |
| YJV | > | Jovan MIJATOVIC | W/AM | SRB | 53 | 75 | 11/07/05 (19) | 89 | | | IFK Göteborg | | 1560 | | | | 0 | 0 | 1725 | 0 | Y | |
| Loan/transfer listed |
| UML | - | Cyril NGONGE | St/W | BEL | 61 | 95 | 26/05/00 (24) | 90 | 1.77 | 68 | Kaiserslautern | | 7650 | | | T | 2 | 0 | 3880 | 1 | +2 | |
| FEU | - | PEDRO António Pereira GONÇALVES | W/AM | POR | 65 | 93 | 28/06/98 (26) | 93 | 1.73 | 65 | Sporting | | 20100 | | | T | 0 | 0 | 5315 | 0 | +1 | |
| NKG | - | Abdul FATAWU | W | GHA | 60/61 | 95 | 08/03/04 (20) | 78 | 1.77 | 73 | Sporting | | 5510 | | | T | 0 | 0 | 5045 | 0 | Y | |
| BGR | - | KAIKY Fernandes Melo | CB | BRA | 57 | 82 | 12/01/04 (20) | 82 | 1.83 | 76 | Sporting | | 2910 | | | T | 1 | 0 | 1925 | 0 | Y | |
| Released |
| NXF | 16 | Christoph KRAMER | CM/DM | GER | 62 | 2 | 19/02/91 (33) | 95 | 1.90 | 73 | Nottingham Forest | | | | | | | | 1320 | | | |
| HTP | 16 | Diogo Pinheiro MONTEIRO | CB | POR | 47 | 0 | 28/01/05 (19) | 84 | 1.84 | 73 | Leeds United | | | | | | | | 465 | | | |
| YHW | <20 | Mateo TANLONGO | CB/CM | ARG | 55 | 7 | 12/08/03 (21) | 84 | 1.78 | 68 | Pafos FC | | | | | | | | 1305 | | | |
