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| Transfers |
 Girona 7,000,000 < >  Kaiserslautern |
| DWU | > | VANDERSON de Oliveira Campos | RWB | BRA | 64 | 91 | 21/06/01 (23) | 90 | | | Kaiserslautern | | 17180 | | | | 0 | 0 | 3925 | 0 | +3 | |
| UML | < | Cyril NGONGE | St/W | BEL | 61 | 1 | 26/05/00 (24) | 90 | 1.77 | 68 | Girona | | | | | | | | 3880 | | | |
 Toulouse 2,000,000 < > Kaiserslautern |
| YMK | > | Christian MAWISSA | CB | FRA | 58 | 90 | 18/04/05 (19) | 86 | 1.80 | 83 | Kaiserslautern | | 3080 | | | | 0 | 0 | 2420 | 0 | Y | |
| PUV | < | Yann Aurel BISSECK | CB/DM | GER | 61 | 12 | 29/11/00 (23) | 93 | 1.94 | 83 | Toulouse | | | | | | | | 2555 | | | |
 Shakhtar 10,000,000 < > Kaiserslautern |
| HEF | > | Mario PASALIC | CM/AM | CRO | 66 | 95 | 09/02/95 (29) | 91 | 1.86 | 78 | Kaiserslautern | 6.58 | 27020 | | | | 3 | 0 | 5060 | 1 | +3 | |
| Real Betis < > Paris SG |
| WKS | < | Alan VARELA | DM | ARG | 64 | 94 | 04/07/01 (23) | 92 | 1.77 | 72 | Real Betis | | 18480 | | | | 1 | 1 | 3925 | 0 | | |
| TZG | < | Lucas BELTRÁN | St | ARG | 63 | 91 | 29/03/01 (23) | 91 | 1.75 | 76 | Real Betis | | 12840 | | | | 0 | 0 | 5850 | 0 | | |
| AVJ | > | Ousmane DEMBÉLÉ | W/AM | FRA | 67 | 89 | 15/05/97 (27) | 91 | 1.77 | 61 | Paris SG | | 33060 | | | | 4 | 0 | 6655 | 2 | +4 | |
 Ulsan HD < > Paris SG |
| JPE | < | ENDRICK Felipe Moreira de Sousa | St | BRA | 58/61 | 94 | 21/07/06 (18) | 75 | 1.73 | 66 | Paris SG | | 5050 | | | | 0 | 0 | 6910 | 0 | Y | (t.33, Ulsan HD) |
| Ceará < > Paris SG |
| DCA | < | VICTOR HUGO Gomes Silva | CM | BRA | 57/61 | 94 | 11/05/04 (20) | 74 | | | Paris SG | | 5860 | | | | 0 | 0 | 5045 | 0 | Y | (t.21, Ceará) |
| Nice < > 3,460,000 Anderlecht |
| VXM | < | Lucas GOURNA-DOUATH | DM/CM | FRA | 62 | 10 | 05/08/03 (21) | 80 | | | Nice | | | | | | | | 3610 | | | |
| Villarreal 4,500,000 < > Anderlecht |
| NBD | > | Nicolas JACKSON | CS | SEN | 64 | 85 | 20/06/01 (23) | 92 | 1.86 | 78 | Anderlecht | | 17780 | | | | 0 | 0 | 6755 | 0 | +4 | |
| XAJ | < | CARLOS SOLER Barragán | CM/RM | ESP | 65 | 14 | 02/01/97 (27) | 93 | 1.83 | 72 | Villarreal | | | 2 | | | | | 5000 | | | |
Borussia Dortmund 7,800,000 < >  Sporting |
| LPD | > | Ansgar KNAUFF | RW | GER | 63 | 94 | 10/01/02 (22) | 94 | 1.80 | 73 | Sporting | 7.20 | 15540 | | | | 0 | 0 | 5580 | 1 | +4 | |
| 1.FC Magdeburg < > 5,260,000 Lille |
| VGH | < | Umut TOHUMCU | AM | GER | 59 | 4 | 11/08/04 (20) | 91 | 1.75 | 71 | 1.FC Magdeburg | | | | | | | | 3785 | | | |
| Sevilla < > Deportivo |
| QBT | < | Pedro González López, PEDRI | CM/AM | ESP | 66 | 95 | 25/11/02 (21) | 91 | 1.74 | 60 | Deportivo | | 28720 | | | | 0 | 0 | 9420 | 0 | | (t.21, Sevilla) |
| Banfield 4,420,000 < > Espanyol |
| EPU | > | Sheraldo BECKER | W/CS | SUR | 63 | 87 | 09/02/95 (29) | 89 | 1.80 | 75 | Espanyol | | 14540 | | | | 0 | 0 | 3275 | 0 | +1 | |
| Loan callbacks |
| CMS | - | Matías SOULÉ Malvano | RW/AM | ARG | 62 | 98 | 15/04/03 (21) | 95 | | | SC Heerenveen | 7.50 | 10120 | | | | 2 | 0 | 5325 | 1 | +1 | |
| JCU | - | Eddie NKETIAH | CS | ENG | 60/63 | 90 | 30/05/99 (25) | 76 | 1.80 | 72 | Lazio | | 15840 | | | | 0 | 0 | 4915 | 0 | +1 | |
