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| Transfers |
2,850,000 < >  Hertha BSC Berlin |
| KEX | > | Mikel JAUREGIZAR Albóniga | CM/AM | ESP | 61 | 92 | 13/11/03 (21) | 90 | 1.77 | 74 | Hertha BSC Berlin | | 9930 | | | | 0 | 0 | 4615 | 0 | +4 | |
 Athlético-PR 6,850,000 < >  Lyon |
| SNI | > | Rômulo José Cardoso da Cruz, RÔMULO CARDOSO | St | BRA | 61 | 88 | 08/02/02 (23) | 86 | 1.93 | 78 | Lyon | | 10720 | | | | 0 | 0 | 4375 | 0 | +4 | |
| VKQ | < | Ki-Jana HOEVER | RB/CB | NED | 61 | 14 | 18/01/02 (23) | 91 | 1.80 | 65 | Athlético-PR | | | | | | | | 2555 | | | |
| UAJ | < | Maxence CAQUERET | CM | FRA | 63 | 14 | 15/02/00 (25) | 94 | 1.74 | 63 | Athlético-PR | | | | | | | | 4215 | | | |
 Tigre 5,995,000 < > Lyon |
| GWG | > | Ezequiel FERNÁNDEZ | CM/DM | ARG | 60 | 74 | 25/07/02 (23) | 88 | 1.78 | 76 | Lyon | | 9930 | | | | 0 | 0 | 3245 | 0 | +4 | |
| 3,285,000 < > Lyon |
| EVM | > | Christian Michel KOFANE | St | CMR | 47 | 64 | 26/07/06 (19) | 92 | 1.89 | 68 | Lyon | | 630 | | | | 0 | 0 | 835 | 0 | Y | |
 St.Mirren < > 850,000 Lille |
| YKO | < | Edan DIOP | CM | FRA | 50 | 12 | 28/08/04 (21) | 85 | 1.80 | 70 | St.Mirren | | | | | | | | 915 | | | |
Lille < > 7,655,000  Anderlecht |
| KPP | < | Quentin MERLIN | LWB/LW | FRA | 63 | 60 | 16/05/02 (23) | 82 | 1.74 | 64 | Lille | | 15040 | 1 | | | 1 | 0 | 3405 | 0 | +2 | |
| 1.FC Magdeburg < > 950,000 FC Schalke 04 |
| LMU | < | Florian FLICK | CM | GER | 53 | 1 | 01/05/00 (25) | 89 | 1.90 | 80 | 1.FC Magdeburg | | | | | | | | 945 | | | |
| Waldhof Mannheim < > 690,000 FC Schalke 04 |
| QKI | < | Donis AVDIJAJ | LW | KOS | 54 | 1 | 25/08/96 (29) | 83 | 1.72 | 70 | Waldhof Mannheim | | | | | | | | 830 | | | |
| Monaco 7,000,000 < > FC Schalke 04 |
| JAW | > | Takumi MINAMINO | AM/W | JPN | 65 | 97 | 16/01/95 (30) | 90 | 1.74 | 67 | FC Schalke 04 | 7.23 | 20000 | | | | 4 | 0 | 4075 | 14 | +3 | |
Talleres 9,000,000 < >  IFK Göteborg |
| MDS | > | Mateo RETEGUI | St | ITA | 65 | 80 | 29/04/99 (26) | 83 | 1.84 | 76 | IFK Göteborg | | 22700 | | | | 0 | 0 | 6195 | 1 | +4 | |
| Sporting Gijón < > 880,000 Real Betis |
| LRH | < | Sergio CANALES Madrazo | AM/W | ESP | 62 | 10 | 16/02/91 (34) | 93 | 1.76 | 65 | Sporting Gijón | | | | | | | | 795 | | | |
| NEC 7,500,000 < > Real Betis |
| GZX | > | Robin ROEFS | Gk | NED | 62 | 85 | 17/01/03 (22) | 88 | 1.92 | 72 | Real Betis | | 13760 | | | | 0 | 0 | 3645 | 0 | +4 | |
 Cerro Porteńo < >  Arsenal |
| HFE | < | Julio César ENCISO Espínola | AM/W | PAR | 59/61 | 92 | 23/01/04 (21) | 76 | 1.77 | 68 | Arsenal | | 12020 | | | | 0 | 0 | 4615 | 0 | +2 | (t.42, Cerro Porteńo) |
| 1,750,000 < > Hamburger SV |
| GNM | > | Malick YALCOUYÉ | CM | CIV | 51 | 84 | 18/11/05 (19) | 86 | | | Hamburger SV | | 1020 | | | | 0 | 0 | 1285 | 0 | Y | |
| 1,500,000 < > Hamburger SV |
| UQQ | > | Iván Ramiro ROMÁN Hurtado | CB | CHI | 52 | 96 | 12/07/06 (19) | 86 | | | Hamburger SV | | 1240 | | | | 0 | 0 | 1005 | 0 | Y | |
| SC Heerenveen 8,000,000 < > Blackburn Rovers |
| BYY | > | Terem MOFFI | CS | NGA | 63 | 95 | 25/05/99 (26) | 90 | 1.88 | 87 | Blackburn Rovers | | 14740 | | | | 1 | 0 | 4635 | 0 | +2 | |
| Juventus 5,000,000 < > 1.FC Union Berlin |
| MFH | > | Matteo GABBIA | CB/DM | ITA | 63 | 93 | 21/10/99 (25) | 93 | 1.85 | 78 | 1.FC Union Berlin | 6.73 | 13640 | | | | 10 | 0 | 2865 | 2 | +2 | |
| Sheffield United 6,000,000 < > 1.FC Union Berlin |
| EHK | > | Iliman NDIAYE | AM/CS | SEN | 63 | 86 | 06/03/00 (25) | 88 | 1.80 | 70 | 1.FC Union Berlin | | 14340 | | | | 0 | 0 | 4215 | 0 | +2 | |
| River Plate 3,250,000 < > Rangers |
| YMT | > | Agustín Fabián RUBERTO | St | ARG | 45 | 75 | 14/01/06 (19) | 87 | 1.83 | 80 | Rangers | | 440 | | | | 0 | 0 | 620 | 0 | Y | |
 Houston Dynamo < > SC Heerenveen |
| FBH | < | James TRAFFORD | Gk | ENG | 62 | 99 | 10/10/02 (23) | 87 | 1.97 | 83 | SC Heerenveen | | 12260 | | | | 0 | 0 | 3645 | 0 | +1 | (t.23, Houston Dynamo) |
| 2,005,000 < > Rayo Vallecano |
| ERP | > | PABLO García Fernández | RW | ESP | 47 | 68 | 15/08/06 (19) | 91 | 1.75 | 67 | Rayo Vallecano | | 570 | | | | 0 | 0 | 710 | 0 | Y | |
| 1,005,000 < > Rayo Vallecano |
| HNJ | > | Rayan FOFANA | CS | FRA | 42 | 88 | 12/02/06 (19) | 89 | | | Rayo Vallecano | | 280 | | | | 0 | 0 | 390 | 0 | Y | |
| 755,000 < > Rayo Vallecano |
| VZG | > | Aymen SLITI | W | NED | 42 | 82 | 24/03/06 (19) | 87 | | | Rayo Vallecano | | 300 | | | | 0 | 0 | 325 | 0 | Y | |
| Preussen Münster < > Newcastle United |
| VTL | < | Paris BRUNNER | St | GER | 47/48 | 94 | 15/02/06 (19) | 78 | 1.86 | 74 | Newcastle United | | 400 | | | | 0 | 0 | 965 | 0 | Y | (t.5, Preussen Münster) |
| Sheffield United < > Newcastle United |
| MSL | < | Paul WANNER | AM | GER | 60 | 92 | 23/12/05 (19) | 82 | 1.85 | 75 | Newcastle United | | 4800 | | | | 0 | 0 | 4750 | 0 | t.7 | (t.25, Sheffield United) |
| Venezia < > Feyenoord |
| TYN | < | Francesco CAMARDA | CS | ITA | 51 | 94 | 10/03/08 (17) | 81 | 1.85 | 75 | Feyenoord | | 590 | | | | 0 | 0 | 1765 | 0 | Y | (t.11, Venezia) |
| Kelty Hearts < > 1,480,000 Feyenoord |
| JOA | < | Ryan DUNCAN | AM/LW | SCO | 51/52 | 6 | 18/01/04 (21) | 78 | | | Kelty Hearts | | | | | | | | 1235 | | | |
| 2,000,000 < > Boca Juniors |
| IDO | > | Jonas Adjei ADJETAY | CB/FB | GHA | 60 | 94 | 13/12/03 (21) | 84 | 1.88 | 82 | Boca Juniors | | 8840 | | | | 0 | 0 | 2715 | 0 | +1 | |
| 2,500,000 < > Boca Juniors |
| EXJ | > | Facundo COLIDIO | CS/LW | ARG | 61 | 94 | 04/01/00 (25) | 93 | 1.75 | 68 | Boca Juniors | | 9640 | | | | 0 | 0 | 3670 | 0 | +1 | |
| 1,550,000 < > Boca Juniors |
| WCO | > | Felipe Ignacio LOYOLA Olea | CB/CM | CHI | 61 | 81 | 09/11/00 (24) | 91 | 1.80 | 76 | Boca Juniors | | 10620 | | | | 0 | 0 | 2265 | 0 | +1 | |
| Greuther Fürth 5,400,000 < > Bayern München |
| CSA | > | Anton STACH | CM/CB | GER | 63 | 75 | 15/11/98 (26) | 91 | 1.92 | 86 | Bayern München | | 14540 | | | | 0 | 0 | 3980 | 0 | +1 | |
| SV Darmstadt 98 4,800,000 < > Bayern München |
| KKV | > | Phillip TIETZ | CS | GER | 62 | 89 | 09/07/97 (28) | 93 | 1.90 | 81 | Bayern München | | 12760 | | | | 0 | 0 | 3530 | 0 | +1 | |
| WBA 1,550,000 < > Everton |
| ZGJ | > | Alex PALMER | Gk | ENG | 58 | 88 | 10/08/96 (29) | 92 | 1.83 | 72 | Everton | | 5940 | | | | 0 | 0 | 1080 | 0 | +1 | |
| Bristol City 3,600,000 < > Everton |
| PQV | > | Lloyd KELLY | LB/CB | ENG | 64 | 83 | 01/10/98 (27) | 92 | 1.78 | 70 | Everton | | 14040 | | | | 0 | 0 | 2545 | 0 | +1 | |
| Loan/transfer listed |
| EVR | - | ÂNGELO Gabriel Borges Damaceno | RW/WS | BRA | 58/60 | 92 | 21/12/04 (20) | 76 | 1.80 | 78 | Anderlecht | | 4740 | | | T | 0 | 0 | 4370 | 0 | Y | |
| Released |
| NGH | 16 | Luca DI MAGGIO | CM/AM | ITA | 38 | 13 | 31/03/05 (20) | 84 | | | Padova | | | | | | | | 135 | | | |
| SLX | 16 | FÉLIX Martí GARRETA | CB | ESP | 52 | 13 | 21/04/04 (21) | 87 | | | Moreirense | | | | | | | | 830 | | | |
| Loan callbacks |
| HVW | - | Tygo LAND | CM | NED | 52 | 98 | 11/01/06 (19) | 87 | 1.68 | 56 | Newcastle United | | 1270 | | | | 0 | 0 | 1490 | 0 | Y | |
| MSL | 25+ | Paul WANNER | AM | GER | 60 | 92 | 23/12/05 (19) | 82 | 1.85 | 75 | Newcastle United | | 4800 | | | | 0 | 0 | 4750 | 0 | t.7 | (t.25, Sheffield United) |
| BDM | - | Giovanni REYNA | AM/W | USA | 62 | 94 | 13/11/02 (22) | 89 | 1.85 | 79 | Club Brugge | 7.00 | 12560 | | | | 0 | 1 | 4830 | 7 | +1 | |
