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| Transfers |
 Athlético-PR 3,800,000 < >  SC Heerenveen |
| IBM | > | BENTO Matheus Krepski | Gk | BRA | 63 | 96 | 10/06/99 (24) | 85 | | | SC Heerenveen | | 14740 | | | | 0 | 0 | 3585 | 0 | +2 | |
| GEL | < | Elia CAPRILE | Gk | ITA | 58 | 4 | 25/08/01 (22) | 81 | | | Athlético-PR | | | | | | | | 2070 | | | |
 Paris SG 5,000,000 < > Lille |
| HNX | > | Samuel ILING-JUNIOR | LW | ENG | 56 | 94 | 04/10/03 (20) | 90 | | | Lille | | 2620 | | | | 0 | 0 | 2450 | 0 | Y | |
| JFQ | < | Leny YORO | CB | FRA | 63 | 94 | 13/11/05 (18) | 94 | | | Paris SG | 6.65 | 7810 | | | | 0 | 0 | 5315 | 0 | Y | |
| SRS | > | Malo GUSTO | RB/RM | FRA | 63 | 90 | 19/05/03 (20) | 94 | | | Lille | | 8300 | | | | 0 | 1 | 4545 | 0 | Y | |
| XPK | > | Antoni MILAMBO | AM | NED | 48 | 93 | 03/04/05 (19) | 84 | | | Lille | | 700 | | | | 0 | 0 | 825 | 0 | Y | |
 Union SG 51,500,000 < > Lille |
| FZE | > | Odilon KOSSOUNOU | CB/DM | CIV | 64 | 75 | 04/01/01 (23) | 80 | 1.91 | 77 | Lille | | 17880 | | | | 0 | 0 | 3925 | 0 | +4 | |
| Toulouse 45,000,000 < > Lille |
| CQJ | > | Amine ADLI | W/St | MAR | 64 | 85 | 10/05/00 (23) | 89 | 1.74 | 60 | Lille | | 19180 | | | | 0 | 0 | 5790 | 3 | +4 | |
 Real Sociedad 5,500,000 < >  Sporting |
| MBK | > | THIERRY Rendall CORREIA | RWB | POR | 64 | 98 | 09/03/99 (25) | 95 | 1.76 | 60 | Sporting | 6.96 | 17080 | | | | 2 | 0 | 3305 | 4 | +4 | |
Preston North End < >  Rangers |
| LTL | < | Zak LOVELACE | CS | ENG | 38 | 95 | 23/01/06 (18) | 90 | | | Rangers | | 160 | | | | 0 | 0 | 225 | 0 | Y | (t.36, Preston North End) |
 Borussia Dortmund 3,000,000 < >  FC Basel |
| TIN | > | Tom BISCHOF | CM/AM | GER | 54 | 95 | 28/06/05 (18) | 86 | 1.72 | 58 | FC Basel | | 1610 | | | | 0 | 0 | 2165 | 0 | Y | |
| VGQ | > | Tom ROTHE | LB/LM | GER | 46 | 81 | 29/10/04 (19) | 94 | 1.93 | 88 | FC Basel | | 580 | | | | 0 | 0 | 395 | 0 | Y | |
| Juventude 800,000 < > FC Basel |
| AGR | > | Ian SUBIABRE | CS | ARG | 35/37 | 82 | 01/01/07 (17) | 75 | 1.72 | 69 | FC Basel | | 150 | | | | 0 | 0 | 215 | 0 | Y | |
| Crystal Palace < > 4,100,000 FC Basel |
| NUS | < | Tanguy NDOMBÉLÉ | CM/DM | FRA | 62 | 9 | 28/12/96 (27) | 92 | 1.76 | 68 | Crystal Palace | | | | | | | | 3235 | | | |
| 1,700,000 < > Newcastle United |
| QSR | > | Luis Antonio da Rocha Junior, JUNINHO CAPIXABA | LB/LM | BRA | 62 | 77 | 06/07/97 (26) | 91 | 1.76 | 63 | Newcastle United | | 11960 | | | | 0 | 0 | 2340 | 0 | | |
| 1,800,000 < > Newcastle United |
| BQM | > | OTÁVIO Ataide da Silva | CB | BRA | 61 | 86 | 21/04/02 (22) | 90 | 1.84 | 79 | Newcastle United | | 11220 | | | | 0 | 0 | 2840 | 0 | | |
| Guingamp 2,695,000 < > Leicester City |
| DPO | > | Matt TARGETT | LB | ENG | 62 | 98 | 18/09/95 (28) | 87 | 1.83 | 70 | Leicester City | | 11360 | | | | 0 | 0 | 2060 | 0 | +1 | |
| Loan/transfer listed |
| JJD | - | Jesper LINDSTRŘM | AM/W | DEN | 64 | 95 | 29/02/00 (24) | 84 | 1.81 | 63 | Anderlecht | | 16340 | | | T | 3 | 0 | 5145 | 0 | +2 | |
| WPZ | - | Calvin RAMSAY | RB | SCO | 51 | 93 | 31/07/03 (20) | 81 | | | Anderlecht | | 1050 | | | T | 0 | 0 | 790 | 0 | Y | |
| FFG | - | Aster VRANCKX | CM | BEL | 61 | 89 | 04/10/02 (21) | 82 | 1.83 | 78 | Anderlecht | | 10720 | | | T | 0 | 0 | 4615 | 0 | | |
| LZW | - | Pierre KALULU Kyatengwa | RB/CB | FRA | 64 | 89 | 05/06/00 (23) | 95 | 1.79 | 69 | Anderlecht | | 22900 | | | T | 2 | 0 | 3925 | 0 | +3 | |
| Loan callbacks |
| QSB | - | Nikola MILENKOVIC | CB/RB | SRB | 65 | 98 | 12/10/97 (26) | 91 | 1.95 | 91 | IFK Göteborg | | 21500 | | | | 3 | 0 | 3605 | 1 | +1 | |
| HNX | 16 | Samuel ILING-JUNIOR | LW | ENG | 56 | 94 | 04/10/03 (20) | 90 | | | Lille | | 2620 | | | | 0 | 0 | 2450 | 0 | Y | |
