| J. KarlssonCentre-back |  Malmo FF | 🇸🇪Sweden | 25 | 0 | 0 | 3.7 | 8▼50% | 29▼5.5% |
| J. KarlssonCentral midfielder |  Bologna | 🇸🇪Sweden | 28 | 5 | 0 | 19.8 | 20▲114.1% | 31▼48.5% |
| J. KarlssonCentre-back |  Vasteras SK FK | 🇸🇪Sweden | 22 | 0 | 0 | 4.1 | 7▲119.4%↩ | 33▲5.1%↩ |
| J. KarleseAttacking midfielder |  Golden Arrows | 🇿🇦South Africa | 24 | 2 | 3 | 0 | 10 | 2 |
| J. KaprofCentre-forward |  Quilmes | 🇦🇷Argentina | 31 | 1 | 1 | 1.2 | 4▲28.1%↩ | 15▼56%↩ |
| J. KaparosCentral midfielder |  Patro Eisden | 🇳🇱Netherlands | 24 | 0 | 0 | 7.3 | 1▼89.7%↩ | 36▼6.5%↩ |
| J. KaniaWinger | De Graafschap | 🇩🇪Germany | 24 | 1 | 0 | 13.9 | 4▼70.9%↩ | 51▲15.8%↩ |
| J. KanayamaGoalkeeper | Fagiano Okayama | 🇯🇵Japan | 38 | 0 | 0 | 0.2 | 0 | 2 |
| J. KanaCentral midfielder | RSC Anderlecht II | 🇧🇪Belgium | 20 | 0 | 0 | 6.3 | 1 | 37 |
| J. KanaCentral midfielder |  RSC Anderlecht II | 🏳️ | 19 | 1 | 1 | 7 | 13 | 43 |
| J. KamińskiCentre-forward |  Benfica | 🇵🇱Poland | 24 | 9 | 3 | 25.1 | 42▲132.6%↩ | 82▲13.6%↩ |
| J. KałuzińskiCentral midfielder |  Başakşehir | 🇵🇱Poland | 23 | 0 | 1 | 10 | 7▼80.3%↩ | 43▼19.9%↩ |
| J. KalumbaWinger |  Mallorca | 🇫🇷France | 21 | 0 | 0 | 38.3 | 0 | 64▲3.9%↩ |
| J. KaluluFull-back |  PAU | 🇫🇷France | 21 | 1 | 2 | 22.6 | 39▲155.3% | 67▲17.3% |
| J. KaluWinger |  Beitar Jerusalem | 🇳🇬Nigeria | 28 | 6 | 2 | 4.6 | 26▲1.2%↩ | 32▲7.1%↩ |
| J. KalisvaartCentral midfielder |  Almere City FC | 🇳🇱Netherlands | 22 | 0 | 2 | 14.8 | 13▼59.6%↩ | 53▼8.8%↩ |
| J. KalabiškaCentral midfielder |  Zlin | 🇨🇿Czechia | 39 | 1 | 0 | 0 | 7 | 0 |
| J. KadileWinger |  Servette FC | 🇫🇷France | 23 | 6 | 10 | 9.8 | 30▲2.4%↩ | 42▼38.7%↩ |
| J. KadijevicGoalkeeper | Gimnasia L.P. | 🇦🇷Argentina | 22 | 0 | 0 | 10.5 | 0 | 41 |
| J. KadijevicGoalkeeper |  Gimnasia L.P. | 🏳️ | 21 | 0 | 0 | 10.8 | 7 | 45 |
| J. KadeCentral midfielder |  Emmen | 🇩🇪Germany | 27 | 0 | 0 | 9.4 | 0▼100% | 32▼40.9% |
| J. KadákCentral midfielder |  Dukla Praha | 🇸🇰Slovakia | 25 | 1 | 1 | 0 | 9 | 1 |
| J. KäckCentre-forward |  Trelleborg | 🇸🇪Sweden | 20 | 0 | 0 | 1.5 | 0▼100% | 23▼14% |
| J. KabiaCentral midfielder | Grimsby | 🇮🇪Republic of Ireland | 26 | 2 | 0 | 2.8 | 5▲14.6%↩ | 26▼36.5%↩ |
| J. JustvanAttacking midfielder |  1. FC Nürnberg | 🇩🇪Germany | 28 | 7 | 8 | 18.4 | 48▼17.2% | 53▼15.6% |
| J. JustinCentre-back |  Leeds | 🏴England | 28 | 2 | 1 | 41.5 | 30▲7.2%↩ | 58▼22.1%↩ |
| J. JuranovićFull-back |  Union Berlin | 🇭🇷Croatia | 30 | 1 | 1 | 10.1 | 5▼62.3% | 34▼30.2% |
| J. JuniorCentre-forward | Sandviken | 🇳🇬Nigeria | 34 | 0 | 0 | 0.1 | 0▼100% | 4▼83.4% |
| J. JuliussonCentre-back |  Kristiansund BK | 🏳️ | 21 | 0 | 0 | 7.2 | 26 | 44 |
| J. JulesCentral midfielder |  Aris Thessalonikis | 🇨🇲Cameroon | 28 | 0 | 0 | 2 | 0▼100% | 21▼40.3% |
| J. JugasCentre-back | Zlin | 🇨🇿Czechia | 34 | 0 | 0 | 0 | 6▼41%↩ | 0▼98.1%↩ |
| J. JuckelCentre-forward |  Energie Cottbus | 🇩🇪Germany | 22 | 0 | 0 | 6.4 | 0▼100% | 36▼6.7% |
| J. JuárezCentre-back |  San Miguel | 🇦🇷Argentina | 30 | 0 | 0 | 1.7 | 12 | 18 |
| J. JoronenGoalkeeper |  Palermo | 🇫🇮Finland | 33 | 0 | 0 | 6.6 | 59▲4121.4%↩ | 29▲4%↩ |
| J. JørgensenCentral midfielder | Egersund | 🇳🇴Norway | 20 | 0 | 0 | 2.8 | 0 | 28 |
| J. JonesCentral midfielder |  Burton Albion | 🏴Scotland | 30 | 0 | 0 | 1.9 | 0▼100%↩ | 17▼33.1%↩ |
| J. JonesWinger |  Notts County | 🇲🇹Malta | 28 | 9 | 5 | 2.8 | 28▲92.3% | 26▼8.5% |
| J. JonesCentre-back |  Louisville City | 🇺🇸USA | 23 | 0 | 0 | 3.4 | 0 | 28 |
| J. JonesCentre-back |  Kryvbas KR | 🏳️ | 20 | 0 | 0 | 5 | 11 | 37 |
| J. JonesCentre-back | Sunderland | 🏳️ | 19 | 0 | 0 | 69 | 0 | 72 |
| J. JohnsonFull-back |  Luton | 🏴England | 20 | 0 | 1 | 8.7 | 16▲365.7% | 46▼20.5% |
| J. JohanssonCentre-forward |  Norrby IF | 🇸🇪Sweden | 26 | 1 | 0 | 1.7 | 6▼16.2%↩ | 21▼9%↩ |
| J. JimohCentral midfielder |  Aston Villa | 🏴England | 19 | 0 | 0 | 70.2 | 0 | 73 |
| J. JiménezDefensive midfielder |  Alianza Valledupar | 🇨🇴Colombia | 25 | 0 | 0 | 1.5 | 1 | 20 |
| J. JiménezCentre-forward |  Hartford Athletic | 🇲🇽Mexico | 25 | 1 | 1 | 3.5 | 7 | 29 |
| J. JezierskiDefensive midfielder |  Fredrikstad | 🇵🇱Poland | 22 | 0 | 0 | 5.7 | 1▼78.8%↩ | 33▲2113.3%↩ |
| J. JezicCentral midfielder |  NK Osijek | 🏳️ | 17 | 0 | 0 | 2.9 | 0 | 30 |
| J. JevremovićAttacking midfielder |  Železničar Pančevo | 🇷🇸Serbia | 22 | 3 | 0 | 5.5 | 10 | 37 |
| J. JessenCentral midfielder |  Kasımpaşa | 🇩🇰Denmark | 22 | 1 | 5 | 18.6 | 49 | 47 |
| J. JeřábekCentral midfielder | Dukla Praha | 🇨🇿Czechia | 25 | 0 | 0 | 0 | 0 | 1 |
| J. Jensen-AbbewCentre-back |  Aarhus | 🇩🇰Denmark | 24 | 0 | 0 | 6.9 | 4▼45.5% | 37±0% |
| J. JenoDefensive midfielder |  Unirea Slobozia | 🏳️New Caledonia | 26 | 0 | 0 | 3.1 | 3▲1550%↩ | 25▼46.2%↩ |
| J. JaraCentral midfielder | Chaco For Ever | 🇦🇷Argentina | 23 | 0 | 0 | 5.4 | 0 | 31 |
| J. JannehDefensive midfielder |  Bastia | 🇸🇱Sierra Leone | 23 | 0 | 1 | 20.6 | 24▼5.2% | 55▼8.3% |
| J. JanitzekCentre-back |  SV Wehen | 🇩🇪Germany | 22 | 1 | 1 | 8.1 | 27▲232.9% | 43▲8.9% |
| J. JamesCentre-back |  Alvarado | 🇦🇷Argentina | 25 | 0 | 0 | 5.4 | 5▼3.6%↩ | 31▼29.3%↩ |
| J. JamesAttacking midfielder |  Rennes | 🏴Wales | 22 | 11 | 4 | 45.4 | 37▲118.5% | 68▼4.1% |
| J. JakubkoCentre-back |  Teplice | 🇸🇰Slovakia | 21 | 0 | 1 | 0 | 6 | 2 |
| J. JacquetCentre-back | Liverpool | 🇫🇷France | 21 | 0 | 0 | 93 | 26▲103.9%↩ | 77▲31.5%↩ |
| J. JacobsAttacking midfielder | Almere City FC | 🇳🇱Netherlands | 28 | 1 | 1 | 6 | 4▼86.4%↩ | 34▼34.6%↩ |
| J. JacobsCentre-back | Almere City FC | 🇳🇱Netherlands | 26 | 1 | 0 | 13 | 10▼43.4% | 44▼22.8% |
| J. JacksonGoalkeeper |  FC Dallas | 🇺🇸USA | 26 | 0 | 0 | 5.9 | 2 | 32▼7.3%↩ |
| J. IzumisawaCentral midfielder |  FC Gifu | 🇯🇵Japan | 34 | 0 | 0 | 0.2 | 3 | 6 |
| J. IvanisevicCentre-back |  Istra 1961 | 🇺🇸USA | 21 | 0 | 0 | 3.8 | 1 | 31 |
| J. ItoWinger |  Genk | 🇯🇵Japan | 33 | 6 | 5 | 3.4 | 28▼13%↩ | 19▼55.3%↩ |
| J. ItoCentral midfielder |  RAAL La Louvière | 🇧🇪Belgium | 28 | 1 | 1 | 8.7 | 28▲1.5% | 41▲3.2% |
| J. ItalianoAttacking midfielder |  Grazer AK | 🇦🇺Australia | 25 | 4 | 0 | 8 | 19 | 41 |
| J. ItalengCentre-forward |  Atalanta | 🇨🇲Cameroon | 25 | 0 | 1 | 38.8 | 2 | 49 |
| J. IshikuraDefensive midfielder |  Kamatamare Sanuki | 🇯🇵Japan | 23 | 0 | 0 | 1.9 | 0 | 22 |
| J. IsaksenCentral midfielder | Kristiansund BK | 🇳🇴Norway | 26 | 0 | 0 | 5.7 | 6▼71.6%↩ | 31▲11.4%↩ |
| J. IrvineDefensive midfielder |  FC St. Pauli | 🇦🇺Australia | 33 | 0 | 1 | 8.1 | 23▼52.1% | 23▼45.2% |
| J. IronsideCentre-forward |  Tranmere | 🏴England | 32 | 5 | 2 | 1 | 18▲35.6%↩ | 14▼25.3%↩ |
| J. IritierCentral midfielder |  San Telmo | 🇦🇷Argentina | 31 | 0 | 0 | 1 | 0▼100%↩ | 12▼61%↩ |
| J. IribarrenFull-back |  Banfield | 🇦🇷Argentina | 23 | 0 | 0 | 11.6 | 7▼13.3% | 44▲2.1% |
| J. IredaleCentre-forward |  Gwangju FC | 🇦🇺Australia | 27 | 0 | 0 | 7 | 0▼100%↩ | 28▼24.5%↩ |
| J. IredaleCentre-back |  Hibernian | 🇦🇺Australia | 30 | 0 | 0 | 5.3 | 36▲26.1% | 29▼18.5% |
| J. IpaliboCentral midfielder |  Torreense | 🇳🇬Nigeria | 28 | 0 | 0 | 3.9 | 0▼100%↩ | 27▼15.5%↩ |
| J. IntriagoCentral midfielder |  Mazatlán | 🇪🇨Ecuador | 30 | 0 | 0 | 2.4 | 0▼95.8% | 18▼38.8% |
| J. InserraFull-back |  Melbourne Victory | 🇦🇺Australia | 21 | 0 | 0 | 0.6 | 11 | 19 |
| J. InsaurraldeCentre-back |  Sarmiento Junin | 🇦🇷Argentina | 41 | 0 | 0 | 1.6 | 30▼13.2% | 15▼6.4% |
| J. IngrattiWinger |  Deportivo Riestra | 🇦🇷Argentina | 26 | 0 | 0 | 8.9 | 0 | 33 |
| J. IngramCentral midfielder | Hartford Athletic | 🇺🇸USA | 27 | 0 | 0 | 2.5 | 0 | 21 |
| J. Inge BergetWinger |  Sarpsborg 08 FF | 🇳🇴Norway | 35 | 0 | 0 | 0.4 | 0▼100% | 7▼37.6% |
| J. InfanteCentre-back |  Atletico Tucuman | 🇦🇷Argentina | 30 | 0 | 0 | 2.6 | 1▼93.8% | 20▼16.4% |
| J. ImbrechtsGoalkeeper | RSC Anderlecht II | 🇧🇪Belgium | 24 | 0 | 0 | 7.7 | 8 | 38▼17.8%↩ |
| J. ImaseCentre-back |  Kataller Toyama | 🇯🇵Japan | 33 | 0 | 0 | 0.6 | 4 | 9 |
| J. IllanesCentre-back |  Carrarese | 🇦🇷Argentina | 29 | 2 | 0 | 13.1 | 36▼4.7% | 42▼18.8% |
| J. IlićDefensive midfielder |  Radnicki 1923 | 🇧🇦Bosnia and Herzegovina | 26 | 0 | 1 | 4.8 | 11 | 30 |
| J. IkonéWinger |  Paris FC | 🇫🇷France | 28 | 3 | 1 | 17.3 | 17▲4.9%↩ | 50▼23.6%↩ |
| J. IkomaCentre-back |  Iwaki | 🇯🇵Japan | 27 | 0 | 0 | 4.7 | 0 | 26 |
| J. IkokoFull-back |  Dinamo Bucuresti | 🇨🇩Congo DR | 32 | 0 | 2 | 1 | 14 | 12 |
| J. IkegamiCentral midfielder |  Renofa Yamaguchi | 🇯🇵Japan | 31 | 0 | 0 | 1 | 0 | 13 |
| J. IkedaCentre-back |  Kagoshima United | 🇯🇵Japan | 29 | 0 | 0 | 0.7 | 3▲750%↩ | 25▼21.5%↩ |
| J. Ikanga A NgeleWinger |  RED Star FC 93 | 🇫🇷France | 24 | 6 | 2 | 23.4 | 29▲31.4%↩ | 63▲55.7%↩ |
| J. IdzesCentre-back |  Sassuolo | 🇳🇱Netherlands | 26 | 0 | 0 | 45.8 | 31▲13.9%↩ | 74▼4.6%↩ |
| J. IchimoriGoalkeeper |  Gamba Osaka | 🇯🇵Japan | 35 | 0 | 1 | 3 | 27▼23.3% | 22▼13.2% |
| J. IbarrolaCentre-forward | Lanus | 🇦🇷Argentina | 21 | 0 | 0 | 10.3 | 0 | 43 |
| J. IbáñezAttacking midfielder |  Almirante Brown | 🇦🇷Argentina | 29 | 1 | 0 | 2 | 3▼81.2%↩ | 21▼50.8%↩ |
| J. HuttersGoalkeeper | Aarhus | 🇩🇰Denmark | 22 | 0 | 0 | 6.5 | 0 | 36 |
| J. HuthGoalkeeper |  SC Freiburg | 🇩🇪Germany | 32 | 0 | 0 | 4.6 | 0▼100%↩ | 19▼61.2%↩ |
