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| Transfers |
 Bayer Leverkusen 5,000,000 < > Kaiserslautern |
| XUP | > | Robert ANDRICH | DM/CM | GER | 65 | 99 | 22/09/94 (30) | 93 | 1.87 | 83 | Kaiserslautern | 6.85 | 21900 | | | | 2 | 0 | 2770 | 7 | +3 | |
| HTY | < | JOÃO MÁRIO Naval Costa Eduardo | CM/RM | POR | 66 | 94 | 19/01/93 (31) | 89 | 1.76 | 70 | Bayer Leverkusen | 6.78 | 26120 | | | | 0 | 1 | 4355 | 1 | | |
| 450,000 < > Kaiserslautern |
| IAF | > | Damion DOWNS | CS | GER | 46 | 87 | 06/07/04 (20) | 89 | 1.92 | 80 | Kaiserslautern | | 540 | | | | 0 | 0 | 650 | 0 | Y | |
 Las Palmas < > Benfica |
| GGF | > | Alberto MOLEIRO González | AM | ESP | 61 | 90 | 30/09/03 (21) | 88 | 1.71 | 68 | Benfica | | 10520 | | | | 0 | 0 | 4615 | 0 | +4 | |
| UDL | < | Valentín BARCO | LWB | ARG | 59 | 0 | 23/07/04 (20) | 81 | 1.70 | 64 | Las Palmas | | | | | | | | 2570 | | | |
| NGP | < | ASSANE DIAO Diaoune | W | ESP | 59 | 13 | 07/09/05 (19) | 83 | 1.85 | 80 | Las Palmas | | | | | | | | 4115 | | | |
| Málaga < > Benfica |
| GVS | > | Antonio José Cordero Campillo, ANTOÑITO | RW | ESP | 53 | 88 | 14/11/06 (18) | 85 | | | Benfica | | 1780 | | | | 0 | 0 | 1870 | 0 | Y | |
| MRU | < | Jorne SPILEERS | CB | BEL | 61 | 13 | 21/01/05 (19) | 87 | | | Málaga | | | | | | | | 3715 | | | |
| 650,000 < > Benfica |
| DBN | > | SERGI Domínguez Viloria | CB | ESP | 46 | 92 | 01/04/05 (19) | 88 | 1.88 | 78 | Benfica | | 610 | | | | 0 | 0 | 395 | 0 | Y | |
 Marseille < > 7,410,000 Anderlecht |
| RUQ | < | Teun KOOPMEINERS | CM/AM | NED | 66 | 94 | 28/02/98 (26) | 90 | 1.83 | 77 | Marseille | 7.06 | 26020 | | | | 0 | 0 | 6130 | 3 | +1 | |
 Juventus 5,800,000 < > Lille |
| JYX | < | João Maria Lobo Alves PALHINHA Gonçalves | DM | POR | 66 | 96 | 09/07/95 (29) | 88 | 1.89 | 77 | Juventus | 6.40 | 26720 | | | | 5 | 0 | 3435 | 0 | | |
| FRN | > | Diogo José Teixeira da Silva, JOTA | LW/St | POR | 66 | 97 | 04/12/96 (28) | 92 | 1.78 | 71 | Lille | 6.87 | 30020 | | | | 4 | 0 | 5415 | 8 | +4 | |
| SLD | < | BRAIS MÉNDEZ Portela | RW/AM | ESP | 65 | 85 | 07/01/97 (28) | 90 | 1.87 | 78 | Juventus | 7.00 | 22500 | | | | 5 | 0 | 4690 | 3 | | |
| EVV | > | Samuele RICCI | CM/DM | ITA | 65 | 94 | 21/08/01 (23) | 94 | 1.74 | 59 | Lille | 6.92 | 22700 | | | | 7 | 0 | 6680 | 2 | +4 | |
| JHH | < | Martin BATURINA | CM | CRO | 62 | 91 | 16/02/03 (21) | 88 | 1.72 | 68 | Juventus | | 12560 | | | | 1 | 0 | 5325 | 0 | | |
750,000 < >  West Ham United |
| AMP | > | Alex DOUGLAS | CB | SWE | 56 | 69 | 17/08/01 (23) | 89 | 1.90 | 88 | West Ham United | | 4690 | | | | 0 | 0 | 1220 | 0 | | |
| 1,300,000 < > West Ham United |
| SRK | > | Tyrhys DOLAN | AM/W | ENG | 57 | 96 | 28/12/01 (23) | 88 | 1.70 | 55 | West Ham United | | 5900 | | | | 0 | 0 | 2090 | 0 | | |
| Loan/transfer listed |
| YOF | - | Justin BIJLOW | Gk | NED | 63 | 95 | 22/01/98 (26) | 88 | 1.88 | 84 | Anderlecht | | 19880 | | | T | 1 | 0 | 2985 | 0 | +3 | |
| ENG | - | Armando BROJA | CS | ALB | 61 | 95 | 10/09/01 (23) | 82 | 1.86 | 74 | Lille | | 13960 | | | T | 0 | 0 | 4375 | 0 | +3 | |
| Loan callbacks |
| YEQ | - | Lewis MILEY | CM | ENG | 58/60 | 96 | 01/05/06 (18) | 77 | | | SC Heerenveen | | 5170 | | | | 0 | 0 | 5130 | 0 | Y | |
| HSG | - | Adam WHARTON | CM | ENG | 61/62 | 97 | 06/02/04 (20) | 78 | 1.82 | 76 | SC Heerenveen | | 5530 | | | | 0 | 0 | 5825 | 0 | Y | |
