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| Transfers |
 Liverpool 12,000,000 < >  SC Heerenveen |
| DDA | > | Virgil VAN DIJK | CB | NED | 71 | 97 | 08/07/91 (33) | 94 | 1.93 | 92 | SC Heerenveen | 7.09 | 65000 | | | | 5 | 0 | 3400 | 2 | +2 | |
| QJY | < | Kepa ARRIZABALAGA Revuelta | Gk | ESP | 65 | 99 | 03/10/94 (30) | 91 | 1.86 | 81 | Liverpool | 7.15 | 21800 | | | | 3 | 1 | 2845 | 0 | | |
| FWV | > | Marc-André TER STEGEN | Gk | GER | 70 | 87 | 30/04/92 (32) | 90 | 1.89 | 84 | SC Heerenveen | | 62100 | | | | 0 | 0 | 5050 | 0 | +2 | |
| Alemannia Aachen < > SC Heerenveen |
| MTV | < | Arijon IBRAHIMOVIC | CM | GER | 54/55 | 94 | 11/12/05 (18) | 79 | | | SC Heerenveen | | 2070 | | | | 0 | 0 | 2500 | 0 | Y | (t.36, Alemannia Aachen) |
| Liverpool 10,000,000 < > Newcastle United |
| OXK | > | Mohamed SALAH | RW/WS | EGY | 73 | 97 | 15/06/92 (32) | 89 | 1.75 | 67 | Newcastle United | 7.35 | 65000 | | | | 2 | 1 | 9120 | 5 | +2 | |
| QOT | < | Takefusa KUBO | W/AM | JPN | 65 | 93 | 04/06/01 (23) | 90 | 1.67 | 60 | Liverpool | 6.50 | 22500 | | | | 1 | 1 | 6680 | 0 | | |
| Aston Villa 10,000,000 < > Newcastle United |
| UEG | > | Kadan YOUNG | AM/CM | ENG | 36 | 95 | 19/01/06 (18) | 91 | | | Newcastle United | | 130 | | | | 0 | 0 | 120 | 0 | Y | |
| BNA | < | RODRIGO MUNIZ Carvalho | CS | BRA | 62 | 94 | 04/05/01 (23) | 92 | 1.84 | 71 | Aston Villa | | 11860 | | | | 1 | 0 | 5060 | 0 | | |
| RXC | > | Jacob RAMSEY | CM/AM | ENG | 63 | 94 | 28/05/01 (23) | 94 | 1.66 | 61 | Newcastle United | 7.00 | 16140 | | | | 8 | 0 | 5015 | 1 | +2 | |
 Galatasaray < > 3,680,000  Paris SG |
| AOC | < | Andreas CHRISTENSEN | CB/DM | DEN | 67 | 0 | 10/04/96 (28) | 89 | 1.88 | 68 | Galatasaray | | | | | | | | 4230 | | | |
| Trabzonspor < > 7,110,000 Lille |
| LOC | < | Artem DOVBYK | CS | UKR | 65 | 13 | 21/06/97 (27) | 90 | 1.85 | 78 | Trabzonspor | | | | | | | | 5830 | | | |
 Inter 5,000,000 < > Kaiserslautern |
| FFK | > | Marcel SABITZER | CM/AM | AUT | 66 | 97 | 17/03/94 (30) | 89 | 1.76 | 70 | Kaiserslautern | 7.11 | 26620 | | | | 2 | 1 | 4705 | 2 | +3 | |
| EHC | < | Ivan ILIC | CM/DM | SRB | 64 | 95 | 17/03/01 (23) | 91 | 1.82 | 73 | Inter | 6.86 | 17980 | | | | 2 | 2 | 5790 | 0 | | |
| 5,000,000 < > Kaiserslautern |
| TKS | > | Samuel MBANGULA | W/CS | BEL | 43 | 97 | 16/01/04 (20) | 89 | | | Kaiserslautern | | 320 | | | | 0 | 0 | 340 | 0 | Y | |
| 500,000 < > Kaiserslautern |
| CCZ | > | Max MOERSTEDT | CS | GER | 41 | 79 | 15/01/06 (18) | 90 | 1.94 | 69 | Kaiserslautern | | 260 | | | | 0 | 0 | 370 | 0 | Y | |
Verona < >  Benfica |
| JDW | > | Isak HIEN | CB | SWE | 63 | 97 | 13/01/99 (25) | 89 | | | Benfica | | 16140 | | | | 0 | 0 | 2865 | 0 | +4 | |
| WVB | < | Khéphren THURAM-ULIEN | DM/CM | FRA | 64 | 13 | 26/03/01 (23) | 92 | 1.91 | 82 | Verona | | | | | | | | 3925 | | | |
| Lecce < > Benfica |
| KLX | > | Patrick DORGU | LB/LM | DEN | 60 | 73 | 26/10/04 (20) | 86 | | | Benfica | | 4780 | | | | 0 | 0 | 2970 | 0 | Y | |
| DNT | < | Javier Guerra Moreno, JAVI GUERRA | CM/DM | ESP | 61/62 | 15 | 13/05/03 (21) | 79 | 1.87 | 77 | Lecce | | | | | | | | 5325 | | | |
| HKP | < | Cher NDOUR | CM | ITA | 53/55 | 15 | 27/07/04 (20) | 76 | 1.90 | 83 | Lecce | | | | | | | | 2115 | | | |
| 2,500,000 < > Napoli |
| CFQ | > | Giovanni FABBIAN | CM | ITA | 60 | 75 | 14/01/03 (21) | 87 | | | Napoli | | 8240 | | | | 0 | 0 | 3995 | 0 | | |
| 3,000,000 < > Napoli |
| ONS | > | Ezequiel BARCO | AM | ARG | 63 | 96 | 23/03/99 (25) | 83 | 1.67 | 67 | Napoli | | 13840 | | | | 0 | 0 | 4215 | 0 | | |
2,000,000 < >  CSKA |
| VFE | > | Petar SUCIC | DM | CRO | 61 | 90 | 25/10/03 (21) | 90 | | | CSKA | | 9500 | | | | 0 | 0 | 3130 | 0 | | |
| 2,000,000 < > CSKA |
| XKR | > | ÁLVARO FERNÁNDEZ Carreras | LB | ESP | 61 | 85 | 23/03/03 (21) | 90 | 1.86 | 70 | CSKA | | 9970 | | | | 0 | 0 | 3130 | 0 | | |
| Roda JC 4,130,000 < > Leicester City |
| GPI | > | Bobby DECORDOVA-REID | RW/RWB | JAM | 64 | 87 | 02/02/93 (31) | 93 | 1.70 | 68 | Leicester City | | 17880 | | | | 0 | 0 | 3255 | 0 | +1 | |
| Pisa 3,695,000 < > Udinese |
| KJH | > | Ivan PROVEDEL | Gk | ITA | 65 | 85 | 17/03/94 (30) | 92 | 1.92 | 74 | Udinese | | 20000 | | | | 0 | 0 | 2845 | 0 | +1 | |
| Lecce 3,325,000 < > Auxerre |
| JCT | > | Valentin GENDREY | RB | FRA | 62 | 97 | 21/06/00 (24) | 91 | | | Auxerre | | 11360 | | | | 0 | 0 | 2620 | 0 | +1 | |
| Loan callbacks |
| IIN | - | FERMÍN López Marín | AM/LW | ESP | 62 | 95 | 11/05/03 (21) | 88 | 1.74 | 64 | Deportivo | | 12860 | | | | 0 | 0 | 5325 | 0 | +2 | |
| QGN | - | Ayyoub BOUADDI | AM/CM | FRA | 50 | 93 | 02/10/07 (17) | 85 | | | Paris SG | | 1020 | | | | 0 | 0 | 1310 | 0 | Y | |
| DXL | - | Warren ZAÏRE-EMERY | CM/DM | FRA | 64 | 88 | 08/03/06 (18) | 80 | 1.78 | 68 | Paris SG | | 9580 | | | | 0 | 0 | 9075 | 0 | Y | |
