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| Transfers |
 FC Twente 15,000,000 < >  Kaiserslautern |
| MWC | > | Mees HILGERS | CB | NED | 64 | 92 | 13/05/01 (23) | 88 | 1.90 | 79 | Kaiserslautern | | 19580 | | | | 0 | 0 | 3925 | 0 | +3 | |
| ODG | > | Gijs SMAL | LB | NED | 63 | 84 | 31/08/97 (27) | 92 | 1.83 | 83 | Kaiserslautern | | 14440 | | | | 0 | 0 | 2545 | 0 | +3 | |
 Nottingham Forest 15,000,000 < > Kaiserslautern |
| KJL | > | MURILLO Santiago Costa dos Santos | CB | BRA | 62 | 73 | 04/07/02 (22) | 87 | | | Kaiserslautern | | 11660 | | | | 0 | 0 | 3280 | 0 | +3 | |
| Bristol Rovers < > Newcastle United |
| TMI | < | Chris RIGG | CM | ENG | 52 | 99 | 18/06/07 (17) | 88 | | | Newcastle United | | 1250 | | | | 0 | 0 | 1750 | 0 | Y | (t.23, Bristol Rovers) |
| Newcastle United < > 12,000,000 SC Heerenveen |
| HMM | < | Alexander ISAK | St | SWE | 67 | 94 | 21/09/99 (24) | 90 | 1.91 | 74 | Newcastle United | 7.10 | 31460 | | | | 3 | 0 | 9230 | 5 | +2 | |
 Rangers 25,000,000 < > Newcastle United |
| PCT | > | Phil FODEN | W/AM | ENG | 70 | 95 | 28/05/00 (24) | 91 | 1.71 | 59 | Newcastle United | 6.80 | 65000 | | | | 2 | 2 | 12030 | 1 | +2 | |
| TAX | > | Marc GUEHI | CB | ENG | 66 | 94 | 13/07/00 (24) | 94 | 1.82 | 82 | Newcastle United | 7.00 | 27920 | | | | 2 | 0 | 4635 | 0 | +2 | |
 Partizan 1,500,000 < >  Sporting |
| VUG | < | Ismaël DOUKOURÉ | CB | FRA | 62 | 10 | 24/07/03 (21) | 83 | | | Partizan | | | | | | | | 3610 | | | |
| UZB | < | Mohamed SIMAKAN | CB/RB | FRA | 65 | 2 | 03/05/00 (24) | 91 | 1.87 | 82 | Partizan | | | | | | | | 4025 | | | |
| VBW | < | Pablo Gonçalves Maia Fortunato, PABLO MAIA | DM | BRA | 62 | 2 | 10/01/02 (22) | 93 | | | Partizan | | | | | | | | 3280 | | | |
| CHL | > | Strahinja PAVLOVIC | CB/DM | SRB | 63 | 97 | 24/05/01 (23) | 88 | 1.94 | 94 | Sporting | | 14840 | | | | 0 | 0 | 3405 | 0 | +4 | |
| FC Porto < > SC Heerenveen |
| FBH | < | James TRAFFORD | Gk | ENG | 62 | 86 | 10/10/02 (21) | 91 | 1.97 | 83 | SC Heerenveen | | 7120 | | | | 0 | 0 | 3910 | 0 | | (t.23, FC Porto) |
 Rijeka < > SC Heerenveen |
| FSL | < | George ILENIKHENA | CS | FRA | 59 | 92 | 16/08/06 (18) | 84 | | | SC Heerenveen | | 3720 | | | | 0 | 0 | 5180 | 0 | Y | (t.35, Rijeka) |
Vasco da Gama < > 4,100,000  Lazio |
| UMQ | < | WESLEY Vinícius França Lima | RB | BRA | 61 | 13 | 06/09/03 (21) | 83 | | | Vasco da Gama | | | | | | | | 3130 | | | |
| Piacenza 1,090,000 < > Manchester United |
| EGB | > | Callum BRITTAIN | RB | ENG | 56 | 94 | 12/03/97 (27) | 92 | 1.79 | 68 | Manchester United | | 4330 | | | | 0 | 0 | 890 | 0 | +1 | |
 Grasshoppers 3,635,000 < > Everton |
| TDH | > | Tote António Gomes, TOTI | LB/CB | POR | 63 | 96 | 16/01/99 (25) | 86 | 1.87 | 79 | Everton | | 13240 | | | | 0 | 0 | 2865 | 0 | +1 | |
| Released |
| EQA | 25+ | Julian NIEHUES | CB/DM | GER | 53 | 2 | 17/04/01 (23) | 90 | 1.95 | 89 | 1.FC Heidenheim | | | 15 | | | | | 770 | | | |
| FSH | 25+ | Michal KADLEC | LB/CB | CZE | 60 | 0 | 13/12/84 (39) | 90 | 1.85 | 75 | Jablonec | | | | | | | | F/t | | | |
| FGO | 16 | ALEIX VIDAL Parreu | RWB/RW | ESP | 58 | 9 | 21/08/89 (35) | 93 | 1.76 | 70 | Málaga | | | | | | | | 35 | | | |
| Loan callbacks |
| BOY | - | PEDRO Henrique Silva dos Santos | LW | BRA | 55/58 | 92 | 05/02/06 (18) | 74 | 1.71 | 65 | Arsenal | | 3490 | | | | 0 | 0 | 3850 | 0 | Y | |
