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| Transfers |
 Atlético-MG 10,100,000 < >  Boca Juniors |
| TDS | > | Sávio Moreira de Oliveira, SAVINHO | W | BRA | 64 | 82 | 10/04/04 (20) | 87 | 1.79 | 66 | Boca Juniors | | 17980 | | | | 0 | 0 | 7750 | 2 | +3 | |
2,200,000 < >  Atlético Madrid |
| HEJ | > | CHADI Riad Dnanou | CB | MAR | 61 | 85 | 17/06/03 (21) | 95 | | | Atlético Madrid | | 9880 | | | | 0 | 0 | 3130 | 0 | | |
| 3,000,000 < > Atlético Madrid |
| EGY | > | Rodrigo ZALAZAR Martínez | CM | URU | 63 | 96 | 12/08/99 (25) | 92 | 1.78 | 72 | Atlético Madrid | | 14840 | | | | 0 | 0 | 4215 | 0 | | |
| 3,500,000 < > Atlético Madrid |
| GLQ | > | Andrea COLPANI | AM/RW | ITA | 64 | 96 | 11/05/99 (25) | 85 | | | Atlético Madrid | | 16980 | | | | 0 | 0 | 4875 | 0 | | |
2,400,000 < >  Rangers |
| YXS | < | Hamza IGAMANE | St | MAR | 60 | 98 | 21/05/01 (23) | 90 | 1.81 | 77 | Rangers | | 8540 | | | | 0 | 0 | 3780 | 0 | | |
1,200,000 < >  Dinamo Tbilisi |
| YNW | > | Alaa BELLAAROUCH | Gk | MAR | 58 | 89 | 01/01/02 (23) | 87 | 1.88 | 75 | Dinamo Tbilisi | | 6050 | | | | 0 | 0 | 1915 | 0 | | |
| 2,400,000 < > Dinamo Tbilisi |
| EEB | > | Bojan MIOVSKI | CS | MKD | 61 | 84 | 24/06/99 (25) | 87 | 1.89 | 76 | Dinamo Tbilisi | | 9780 | | | | 0 | 0 | 3670 | 0 | | |
3,000,000 < >  Sporting |
| SPK | < | GENY Cipriano CATAMO | RW/RWB | MOZ | 62 | 90 | 26/01/01 (23) | 89 | 1.72 | 62 | Sporting | | 11860 | | | | 0 | 0 | 4340 | 0 | | |
| 2,200,000 < > Sporting |
| PTA | > | Botond BALOGH | CB | HUN | 62 | 79 | 06/06/02 (22) | 89 | 1.89 | 76 | Sporting | | 11860 | | | | 0 | 0 | 3280 | 0 | | |
| Banfield 4,220,000 < > Espanyol |
| EPU | > | Sheraldo BECKER | W/CS | SUR | 63 | 87 | 09/02/95 (29) | 94 | 1.80 | 75 | Espanyol | | 14240 | | | | 0 | 0 | 3275 | 1 | +1 | |
| Loan/transfer listed |
| CHG | - | Youssoufa MOUKOKO | St/W | GER | 60/62 | 90 | 20/11/04 (20) | 76 | 1.75 | 74 | Barcelona | | 13060 | | | T | 1 | 0 | 6795 | 0 | +3 | |
| YJA | - | Reuell WALTERS | RB/RM | ENG | 40/48 | 90 | 16/12/04 (20) | 64 | | | Barcelona | | 280 | | | T | 0 | 0 | 490 | 0 | Y | |
| MPA | - | UNAI HERNÁNDEZ Lorenzo | CM | ESP | 52 | 94 | 14/12/04 (20) | 86 | | | Barcelona | | 1460 | | | T | 0 | 0 | 1365 | 0 | Y | |
