| I. IovuCentre-back | Dundee Utd | 🇲🇩Moldova | 24 | 1 | 0 | 0 | 8.2 | 0▼100% | 37▼19.1% |
| I. IshkovDefensive midfielder | Ural | 🇷🇺Russia | 21 | 2 | 0 | 0 | 1.5 | 3▼39.6% | 24▼10.6% |
| I. IvanovDefensive midfielder | Lokomotiv Plovdiv | 🏳️ | 23 | 32 | 0 | 0 | 3.7 | 9 | 32 |
| I. IvanovCentral midfielder | Lokomotiv Plovdiv | 🇧🇬Bulgaria | 24 | 0 | 0 | 1 | 3.3 | 4 | 29 |
| I. IvanovCentral midfielder | Chayka | 🇷🇺Russia | 20 | 2 | 0 | 0 | 1.3 | 0 | 21 |
| I. IvanovićWinger | Radnicki NIS | 🇷🇸Serbia | 29 | 6 | 0 | 0 | 1.6 | 0 | 18 |
| I. IvashchenkoCentral midfielder | FC Orenburg | 🏳️ | 17 | 1 | 0 | 0 | 2.1 | 0▼100% | 28▲1.8% |
| I. IvušićGoalkeeper | HNK Hajduk Split | 🇭🇷Croatia | 31 | 15 | 0 | 0 | 1.7 | 19 | 17 |
| I. JagneCentral midfielder | Kifisia | 🇸🇪Sweden | 23 | 7 | 0 | 0 | 5.6 | 2▼85.2%↩ | 29▼15.7%↩ |
| I. JakobsFull-back | Galatasaray | 🇸🇳Senegal | 27 | 8 | 0 | 1 | 8.5 | 20±0% | 37±0% |
| I. JamesCentral midfielder | Alverca | 🇳🇬Nigeria | 22 | 8 | 0 | 2 | 21.9 | 17±0% | 61▲1.8% |
| I. JamesCentral midfielder | Alverca | 🇳🇬Nigeria | 22 | 1 | 0 | 0 | 18.5 | 0 | 52▼2.1%↩ |
| I. JamesCentre-back | Sporting Kansas City | 🇺🇸USA | 18 | 16 | 0 | 0 | 6.3 | 9▲66.7% | 39▲7.4% |
| I. JanssonCentre-forward | Nice | 🇸🇪Sweden | 24 | 4 | 0 | 0 | 33.6 | 6±0% | 62±0% |
| I. JebaliAttacking midfielder | Gamba Osaka | 🇹🇳Tunisia | 34 | 8 | 3 | 1 | 1.7 | 22▼26.8% | 14±0% |
| I. JennerDefensive midfielder | Jong Utrecht | 🇮🇩Indonesia | 22 | 14 | 1 | 0 | 13.5 | 23▲35.3% | 48▼6.3% |
| I. JensenWinger | Lorient | 🇩🇰Denmark | 22 | 5 | 1 | 0 | 38.5 | 23±0% | 70±0% |
| I. JeraldinoCentre-forward | Nublense | 🇨🇱Chile | 30 | 27 | 6 | 2 | 0.7 | 27 | 15▼63.8%↩ |
| I. JohnsonCentral midfielder | Mjallby AIF | 🇸🇪Sweden | 20 | 0 | 0 | 0 | 3.2 | 0 | 29 |
| I. JonesFull-back | Luton | 🏴England | 27 | 9 | 0 | 0 | 7.1 | 5▼21.9% | 33±0% |
| I. JönssonCentre-back | Egersund | 🇸🇪Sweden | 27 | 14 | 1 | 0 | 5.1 | 27▲456.3%↩ | 28▼0.7%↩ |
| I. JukićWinger | FC Anyang | 🇧🇦Bosnia and Herzegovina | 30 | 13 | 0 | 2 | 2.5 | 0 | 18 |
| I. JulianCentre-back | Alverca | 🇧🇪Belgium | 20 | 2 | 0 | 0 | 17.1 | 0 | 50 |
| I. KaGoalkeeper | Jong AZ | 🇳🇱Netherlands | 20 | 3 | 0 | 0 | 11.8 | 0 | 46 |
| I. KaboréFull-back | Wrexham | 🇧🇫Burkina Faso | 25 | 9 | 0 | 1 | 26.7 | 5▼75.4% | 85▲28.6% |
| İ. KahveciAttacking midfielder | Fenerbahçe | 🇹🇷Türkiye | 31 | 7 | 2 | 3 | 3.7 | 27±0% | 25▲6.8%↩ |
| I. KalininCentre-back | FC Sochi | 🇷🇺Russia | 30 | 23 | 0 | 0 | 1.4 | 23▲9.1%↩ | 23▲5.9%↩ |
| I. KallonWinger | Chengdu Better City | 🇸🇱Sierra Leone | 30 | 5 | 0 | 1 | 0.7 | 3▼94.3%↩ | 13▼81.7%↩ |
| I. KalyuzhnyiAttacking midfielder | FC Kharkiv | 🇺🇦Ukraine | 28 | 9 | 0 | 2 | 2.3 | 16±0% | 28±0% |
| I. KamateCentral midfielder | Atletico Madrid | 🇫🇷France | 22 | 1 | 0 | 1 | 79.1 | 5 | 73 |
| I. KanateWinger | 1. FC Kaiserslautern | 🇲🇱Mali | 20 | 8 | 0 | 1 | 19 | 4▼40%↩ | 58▲12.5%↩ |
| I. KaneCentral midfielder | Kolos Kovalivka | 🇲🇱Mali | 26 | 8 | 0 | 0 | 4.6 | 9±0% | 32±0% |
| I. KangasniemiCentre-back | Leicester | 🇫🇮Finland | 19 | 2 | 0 | 0 | 7.2 | 1 | 40 |
| I. KanuWinger | Barnet | 🇸🇱Sierra Leone | 26 | 9 | 2 | 0 | 3 | 10▼64.7% | 33±0% |
| I. KaramokoFull-back | Standard Liege | 🇫🇷France | 25 | 8 | 0 | 1 | 16.4 | 26±0% | 53▲1.1% |
| I. KaramokoWinger | Rouen | 🇫🇷France | 25 | 19 | 0 | 0 | 7.3 | 0 | 48▲59.4%↩ |
| I. KaraogulCentral midfielder | Keçiörengücü | 🇩🇪Germany | 24 | 10 | 1 | 0 | 5.7 | 17▼55% | 39±0% |
| I. KaravashchenkoGoalkeeper | Kudrivka | 🇺🇦Ukraine | 25 | 0 | 0 | 0 | 4.7 | 0▼100%↩ | 29▼13.3%↩ |
| I. KasallaCentral midfielder | Kolos Kovalivka | 🇦🇱Albania | 24 | 6 | 0 | 0 | 4.9 | 0 | 31 |
| I. KatićCentral midfielder | NK Lokomotiva Zagreb | 🇭🇷Croatia | 21 | 20 | 0 | 0 | 4.2 | 6 | 35 |
| I. KawasakiCentre-back | Jubilo Iwata | 🇯🇵Japan | 28 | 12 | 1 | 0 | 2.7 | 5 | 25▼26.3% |
| İ. KayaCentre-forward | Alanyaspor | 🇹🇷Türkiye | 25 | 7 | 0 | 0 | 9.1 | 22±0% | 43±0% |
| I. KazakovCentral midfielder | Beroe | 🇧🇬Bulgaria | 24 | 2 | 0 | 0 | 3 | 0 | 26 |
| I. KebbalCentral midfielder | Paris FC | 🇩🇿Algeria | 28 | 7 | 1 | 1 | 19 | 47±0% | 60±0% |
| I. KebeDefensive midfielder | IMT Novi Beograd | 🇲🇱Mali | 26 | 19 | 0 | 0 | 5.4 | 2▼89.6%↩ | 34▼15%↩ |
| I. KharatinCentral midfielder | Veres Rivne | 🇺🇦Ukraine | 31 | 9 | 0 | 0 | 1.1 | 10±0% | 16±0% |
| I. Kiese ThelinCentre-forward | Ried | 🇸🇪Sweden | 34 | 10 | 2 | 0 | 1.2 | 7▼85.1%↩ | 10▼44.9%↩ |
| I. KingsleyCentre-forward | Fredrikstad | 🇳🇬Nigeria | 24 | 0 | 0 | 0 | 5.9 | 0 | 33 |
| I. KirschCentre-back | Baltika | 🇷🇺Russia | 22 | 10 | 0 | 0 | 3.1 | 18▲947.1%↩ | 31▲10.5%↩ |
| I. KlimentovCentral midfielder | Dobrudzha | 🇧🇬Bulgaria | 28 | 3 | 0 | 0 | 1.2 | 0 | 17 |
| I. KobayashiCentral midfielder | Ventforet Kofu | 🇯🇵Japan | 30 | 5 | 0 | 0 | 1.4 | 0 | 19 |
| I. KogutCentral midfielder | FC Kharkiv | 🇺🇦Ukraine | 30 | 3 | 0 | 0 | 1.2 | 4±0% | 17±0% |
| I. KolarikFull-back | NK Osijek | 🏳️ | 18 | 8 | 0 | 0 | 3.3 | 8 | 32 |
| I. KomarovWinger | FC Rostov | 🇷🇺Russia | 23 | 11 | 2 | 0 | 3.6 | 17▲194.9% | 32▲9.5% |
| I. KonateWinger | Juventus | 🇮🇹Italy | 20 | 5 | 0 | 0 | 27.2 | 0 | 51 |
| I. KonatéCentre-back | Real Madrid | 🇫🇷France | 27 | 8 | 0 | 0 | 68 | 42±0% | 77▲1.7%↩ |
| I. KondoGoalkeeper | Thespakusatsu Gunma | 🇯🇵Japan | 25 | 15 | 0 | 0 | 2.4 | 17 | 25 |
| I. KonéCentral midfielder | Sassuolo | 🇨🇦Canada | 24 | 35 | 6 | 0 | 51.6 | 41▲487%↩ | 82▲25.6%↩ |
| I. KonéGoalkeeper | Boulogne | 🇬🇳Guinea | 36 | 8 | 0 | 0 | 2 | 5 | 12▲36.9%↩ |
| I. KonnoCentre-back | Ehime FC | 🇯🇵Japan | 25 | 0 | 0 | 0 | 2 | 0 | 30 |
| I. KostiDefensive midfielder | Levadiakos | 🇨🇾Cyprus | 26 | 7 | 0 | 0 | 5 | 35±0% | 38±0% |
| I. KostisCentre-back | Castellón | 🇨🇾Cyprus | 23 | 1 | 0 | 0 | 22.9 | 1 | 54 |
| I. KotsyumakaCentre-back | SK Poltava | 🏳️ | 30 | 23 | 1 | 0 | 0.8 | 5 | 18 |
| I. KousoulosDefensive midfielder | Kifisia | 🇨🇾Cyprus | 30 | 1 | 0 | 0 | 1.2 | 2 | 15 |
| I. KoutsidisCentre-back | Eintracht Braunschweig | 🇬🇷Greece | 21 | 2 | 0 | 0 | 16.9 | 1 | 49 |
| I. KoutsoupiasCentral midfielder | Anderlecht | 🇬🇷Greece | 25 | 4 | 0 | 1 | 15.3 | 39±0% | 69±0% |
| I. KovalenkoCentre-forward | Livyi Bereh | 🏳️ | 24 | 5 | 0 | 0 | 5 | 5▼88.2% | 27▼28.3% |
| I. KrajčírikGoalkeeper | Slovan Liberec | 🇸🇰Slovakia | 26 | 2 | 0 | 0 | 6.8 | 4 | 24 |
| I. KrasniqiCentre-back | Polessya | 🇽🇰Kosovo | 26 | 7 | 0 | 0 | 4.6 | 26±0% | 34▲2.4%↩ |
| I. KrasnopirCentre-forward | Polessya | 🇺🇦Ukraine | 23 | 9 | 4 | 0 | 6.2 | 22±0% | 39±0% |
| I. KričakCentre-back | Hapoel Haifa | 🇷🇸Serbia | 30 | 14 | 0 | 0 | 1.8 | 8▼73.7%↩ | 20▼18.7%↩ |
| I. KrsticCentre-forward | Radnicki NIS | 🏳️ | 18 | 0 | 0 | 0 | 4 | 0 | 34 |
| I. KrupskyiFull-back | FC Kharkiv | 🇺🇦Ukraine | 22 | 9 | 1 | 1 | 5.5 | 31±0% | 41▲1.8% |
| I. KukleciCentre-back | Ham-Kam | 🇳🇴Norway | 28 | 7 | 0 | 0 | 2.4 | 1▼92.4%↩ | 26▼26.2%↩ |
| I. KukushkinGoalkeeper | Baltika | 🇷🇺Russia | 24 | 4 | 0 | 0 | 3.3 | 19 | 29 |
| I. KumatoriyaCentre-forward | Tokyo Verdy | 🇯🇵Japan | 23 | 9 | 0 | 0 | 11.2 | 0▼100% | 43±0% |
| I. KuribaraCentre-forward | Sagamihara | 🇯🇵Japan | 25 | 0 | 0 | 0 | 1.9 | 0 | 22 |
| I. KutiaCentral midfielder | HNK Hajduk Split | 🏳️ | 0 | 1 | 0 | 0 | 1 | 0 | 14 |
| I. KuznetsovGoalkeeper | Ural | 🇷🇺Russia | 20 | 0 | 0 | 0 | 1.4 | 0 | 23 |
| I. KvasnytsyaCentre-forward | Livyi Bereh | 🇺🇦Ukraine | 23 | 7 | 0 | 0 | 5 | 7▼5.3%↩ | 35▲3%↩ |
| I. KyryukhantsevFull-back | Epitsentr Dunayivtsi | 🇺🇦Ukraine | 30 | 6 | 0 | 1 | 1.7 | 10±0% | 19±0% |
| I. LaajabCentre-forward | Lyn | 🇳🇴Norway | 41 | 0 | 0 | 0 | 0 | 0 | 1▼78.1%↩ |
| I. LagoCentre-forward | Colon Santa Fe | 🇦🇷Argentina | 24 | 4 | 0 | 0 | 5.9 | 0 | 34▼22.6%↩ |
| I. LantratovGoalkeeper | Lokomotiv | 🇷🇺Russia | 30 | 3 | 0 | 0 | 0.7 | 8 | 14▲5.4% |
| I. LaquintanaDefensive midfielder | Vitoria | 🇺🇾Uruguay | 27 | 2 | 0 | 0 | 19.3 | 0▼100%↩ | 39▼23.7%↩ |
| I. LarieCentre-back | Farul Constanta | 🇷🇴Romania | 39 | 37 | 5 | 0 | 0.5 | 20 | 10 |
| I. LartihrigoyenCentral midfielder | San Telmo | 🇦🇷Argentina | 22 | 15 | 2 | 0 | 6.4 | 11 | 39 |
| I. LawlorGoalkeeper | Crewe | 🇮🇪Republic of Ireland | 32 | 22 | 0 | 0 | 0.8 | 9▲61.4%↩ | 15▼26.6%↩ |
| I. LeeCentre-back | Shrewsbury | 🏳️ | 21 | 2 | 0 | 0 | 2.7 | 1▼56.5% | 28±0% |
| I. LefrancqCentre-forward | Patro Eisden | 🇲🇦Morocco | 22 | 1 | 0 | 0 | 6.6 | 5▲2300%↩ | 39▼18.2%↩ |
| I. LepskiyCentre-back | Krylia Sovetov | 🇷🇺Russia | 21 | 16 | 0 | 0 | 4.3 | 27▲169.7%↩ | 35▲45.4%↩ |
| I. LeshchukGoalkeeper | Dynamo | 🇷🇺Russia | 30 | 6 | 0 | 0 | 0.9 | 4▲45.8% | 17▼11.9% |
| I. LichnovskyFull-back | Universidad de Chile | 🇨🇱Chile | 32 | 13 | 0 | 2 | 0.9 | 12▲2300%↩ | 17▼14.5%↩ |
| I. LidbergCentre-forward | Borussia Mönchengladbach | 🇸🇪Sweden | 28 | 6 | 1 | 0 | 15.7 | 69▲9.3%↩ | 57▲10%↩ |
| I. LindholmCentre-back | Sandviken | 🇸🇪Sweden | 21 | 9 | 0 | 0 | 1.7 | 0 | 23▲0.9% |
| I. LomaevGoalkeeper | Chelyabinsk | 🇷🇺Russia | 27 | 1 | 0 | 0 | 1.4 | 0▼100%↩ | 19▼32%↩ |
| I. LópezWinger | Toluca | 🇲🇽Mexico | 27 | 1 | 1 | 1 | 10.1 | 7±0% | 38▲8.8%↩ |
| I. LópezCentral midfielder | Águilas Doradas | 🇨🇴Colombia | 19 | 0 | 0 | 0 | 1.3 | 0 | 23 |
| I. LosenkoCentral midfielder | CF Montreal | 🇺🇦Ukraine | 22 | 12 | 0 | 0 | 6.1 | 5▼51.8%↩ | 34▼4.5%↩ |
| I. LouzaAttacking midfielder | Panathinaikos | 🇲🇦Morocco | 27 | 7 | 1 | 2 | 5 | 42±0% | 61±0% |