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| Transfers |
 Orlando City < > 4,350,000  Lille |
| JYB | < | Jhon Elmer SOLIS Romero | CM | COL | 58 | 7 | 03/10/04 (20) | 80 | 1.89 | 80 | Orlando City | | | | | | | | 3275 | | | |
 Southampton < >  SC Heerenveen |
| YEQ | < | Lewis MILEY | CM | ENG | 60 | 28 | 01/05/06 (19) | 81 | | | SC Heerenveen | | 4110 | 2 | | | 0 | 0 | 4750 | 0 | Y | (t.9, Southampton) |
Lens 18,000,000 < >  Club Brugge |
| FAV | > | Christian PULISIC | W/AM | USA | 67 | 92 | 18/09/98 (26) | 88 | 1.73 | 63 | Club Brugge | | 30460 | | | | 3 | 1 | 7065 | 0 | +2 | |
| TBL | < | Michal SKÓRAS | RM | POL | 61 | 93 | 15/02/00 (25) | 89 | 1.72 | 64 | Lens | | 11120 | | | | 2 | 0 | 3150 | 0 | | |
 Monterrey < > 1,170,000 Club Brugge |
| CSG | < | Éder Álvarez BALANTA | CB/LB | COL | 60 | 0 | 28/02/93 (32) | 89 | 1.81 | 84 | Monterrey | | | | | | | | 925 | | | |
 Sivasspor < > 1,910,000 Lyon |
| WPS | < | Nathanaël MBUKU | LW | COD | 58 | 15 | 16/03/02 (23) | 85 | | | Sivasspor | | | | | | | | 2420 | | | |
 Zaragoza 51,000,000 < > Lyon |
| TTG | > | Noah ATUBOLU | Gk | GER | 64 | 96 | 25/05/02 (23) | 90 | 1.90 | 78 | Lyon | 7.00 | 18980 | | | | 0 | 0 | 4470 | 0 | +4 | |
| XUL | < | Stefano TURATI | Gk | ITA | 61 | 93 | 05/09/01 (23) | 89 | | | Zaragoza | 7.09 | 8950 | | | | 1 | 0 | 2935 | 0 | | |
| WOH | > | Enzo MILLOT | CM/AM | FRA | 64 | 96 | 17/07/02 (23) | 92 | 1.75 | 64 | Lyon | 7.05 | 18980 | | | | 0 | 0 | 5790 | 4 | +4 | |
| FYU | < | Lorenz ASSIGNON | RB | FRA | 62 | 92 | 22/06/00 (25) | 88 | 1.79 | 67 | Zaragoza | 7.50 | 11460 | | | | 2 | 0 | 2480 | 0 | | |
| Eintr. Frankfurt 4,500,000 < > Lyon |
| FRK | > | Elias BAUM | RB | GER | 54 | 96 | 26/10/05 (19) | 82 | 1.80 | 77 | Lyon | | 1770 | | | | 0 | 0 | 1355 | 0 | Y | |
| Metz < > 120,000 FC Schalke 04 |
| KGG | < | Salif SANÉ | DM/CB | SEN | 55 | 12 | 25/08/90 (34) | 88 | 1.94 | 78 | Metz | | | | | | | | 105 | | | |
| Trabzonspor 14,000,000 < > FC Schalke 04 |
| LOC | > | Artem DOVBYK | CS | UKR | 66 | 97 | 21/06/97 (28) | 89 | 1.85 | 78 | FC Schalke 04 | | 28120 | | | | 0 | 0 | 6315 | 3 | +3 | |
| Torino 15,000,000 < > FC Schalke 04 |
| HYH | > | Vanja MILINKOVIC-SAVIC | Gk | SRB | 65 | 99 | 20/02/97 (28) | 89 | 2.02 | 96 | FC Schalke 04 | 7.07 | 22600 | | | | 1 | 1 | 3175 | 0 | +2 | |
| XJJ | > | Arnaldo 'Antonio' SANABRIA Ayala | CS | PAR | 63 | 95 | 04/03/96 (29) | 90 | 1.80 | 76 | FC Schalke 04 | 6.97 | 14140 | | | | 7 | 0 | 3815 | 15 | +2 | |
| Vis Artena < > Feyenoord |
| KPN | < | Mattia LIBERALI | AM/RW | ITA | 41 | 90 | 06/04/07 (18) | 90 | | | Feyenoord | | 220 | | | | 0 | 0 | 310 | 0 | Y | (t.28, Vis Artena) |
 Ironi Tiberias < > 300,000 Feyenoord |
| REH | < | Ofir MARCIANO | Gk | ISR | 54 | 14 | 07/10/89 (35) | 90 | 1.93 | 7 | Ironi Tiberias | | | | | | | | 345 | | | |
| Potenza 16,000,000 < > Real Betis |
| VFF | > | Riccardo CALAFIORI | LB/CB | ITA | 64 | 91 | 19/05/02 (23) | 91 | 1.88 | 86 | Real Betis | | 18380 | | | | 0 | 0 | 3925 | 0 | +4 | |
 Chonbuk Motors 16,000,000 < > Real Betis |
| QCE | > | LEE Kang-in | AM/St | KOR | 64 | 95 | 19/02/01 (24) | 87 | 1.73 | 68 | Real Betis | | 16580 | | | | 0 | 0 | 5145 | 0 | +4 | |
| Bournemouth 5,000,000 < > TSG Hoffenheim |
| EDP | > | PEDRO Antonio PORRO Sauceda | RWB | ESP | 65 | 88 | 13/09/99 (25) | 85 | 1.76 | 71 | TSG Hoffenheim | | 20000 | | | | 0 | 0 | 3815 | 0 | +2 | |
| St. Louis CITY SC < > Milan |
| WMQ | < | Nelson WEIPER | St | GER | 56 | 94 | 17/03/05 (20) | 92 | 1.92 | 81 | Milan | 5.96 | 2120 | | | | 2 | 1 | 2850 | 1 | Y | (t.34, St. Louis CITY SC) |
| Millwall 8,000,000 < > Milan |
| DPE | > | Emile SMITH ROWE | LW/AM | ENG | 65 | 93 | 28/07/00 (25) | 90 | 1.82 | 79 | Milan | | 21600 | | | | 0 | 0 | 5940 | 0 | +2 | |
| RB Leipzig 1,000,000 < > Milan |
| UQS | > | Viggo GEBEL | AM/RW | GER | 44 | 90 | 22/11/07 (17) | 90 | 1.74 | 69 | Milan | | 370 | | | | 0 | 0 | 545 | 0 | Y | |
| 1,210,000 < > Ajax |
| HTW | > | Marco BIZOT | Gk | NED | 64 | 87 | 10/03/91 (34) | 91 | 1.93 | 85 | Ajax | | 18780 | | | | 0 | 0 | 1890 | 0 | +1 | |
| Galatasaray 3,220,000 < > Hamburger SV |
| OUM | > | OZAN Kabak | CB | TUR | 62 | 76 | 25/03/00 (25) | 90 | 1.68 | 75 | Hamburger SV | | 12060 | | | | 0 | 0 | 2480 | 0 | +1 | |
| Loan/transfer listed |
| HBR | - | Marco ASENSIO Willemsen | AM/W | ESP | 66 | 99 | 21/01/96 (29) | 90 | 1.78 | 70 | Anderlecht | 7.03 | 27820 | | | T | 7 | 0 | 5060 | 4 | +2 | |
| Released |
| WSY | 16 | Adam MONTGOMERY | LWB/LW | SCO | 49 | 14 | 18/07/02 (23) | 89 | | | Port Vale | | | | | | | | 400 | | | |
| CAS | 16 | Armand LAURIENTÉ | WS | FRA | 59/61 | 14 | 04/12/98 (26) | 76 | 1.71 | 59 | Sassuolo | | | | | | | | 3460 | | | |
| Loan callbacks |
| GCQ | - | Quilindschy HARTMAN | LB | NED | 62 | 95 | 14/11/01 (23) | 82 | 1.83 | 77 | SC Heerenveen | | 15340 | | | | 0 | 0 | 2950 | 0 | +1 | |
