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PlayerClub/teamCountryPosition
Osredkar, IgorNacional (CRO) / Slovenia FUTSloveniaSloveniaDefender
Ošs, DāvisMETTA (LVA) / Latvia U21LatviaLatviaGoalkeeper
Osso, JohnSwitzerland FUTSwitzerlandSwitzerlandForward
Ossowska, MartaPoland WU19PolandPolandMidfield
Østergaard, Maja BayDenmark WU19DenmarkDenmarkGoalkeeper
Ostrowska, KarolinaPoland WU19PolandPolandDefender
Ostrowski, JanLuxembourg U17LuxembourgLuxembourgMidfield
Ostrzolek, MatthiasHamburg (GER)GermanyGermanyDefender
O'Sullivan, FionaRepublic of Ireland WOCORepublic of IrelandRepublic of IrelandForward
O'Sullivan, DeniseGlasgow City (SCO) / Republic of Ireland WOCORepublic of IrelandRepublic of IrelandMidfield
O'Sullivan, ThomasWales U21WalesWalesMidfield
O'Sullivan, RianRepublic of Ireland U17Republic of IrelandRepublic of IrelandForward
O'Sullivan, LauraWales WOCOWalesWalesGoalkeeper
Osvaldo , PabloPorto (POR) / ItalyItalyItalyForward
Osváth, AttilaVasas (HUN) / Hungary / Hungary U21HungaryHungaryDefender
Osyra, KornelNieciecza (POL)PolandPolandDefender
Otamendi, NicolásMan. City (ENG)ArgentinaArgentinaDefender
Otmani, MustaphaOmonia (CYP) / France FUTFranceFranceDefender
Oto'o, RandalTondela (POR)GabonGabonDefender
Otstavnov, DmitriRubin (RUS)RussiaRussiaForward
Ott, MelanieGermany WU19GermanyGermanyMidfield
Ottele, TomLuxembourg U21 / Luxembourg U19LuxembourgLuxembourgGoalkeeper
Ottesen, SölviWuhan Zall (CHN) / IcelandIcelandIcelandDefender
Otto, YariGermany U17GermanyGermanyForward
Ouadi, SouliemaneBelgium FUTBelgiumBelgiumForward
Ouahabi, LeilaBarcelona (ESP) / Spain WOCOSpainSpainDefender
Ouali, IdirKortrijk (BEL)FranceFranceMidfield
Ouali, MimounUE Santa Coloma (AND) / Andorra FUTAndorraAndorraDefender
Oude Kotte, ThomasVitesse (NED)NetherlandsNetherlandsDefender
Oukadi, FaridFrance FUTFranceFranceDefender
Oulare, ObbiWatford (ENG) / Belgium U21BelgiumBelgiumForward
Ould-Chikh, BilalBenfica (POR)NetherlandsNetherlandsForward
Õunap, JanarFlora (EST) / Estonia U21EstoniaEstoniaDefender
Ounas, AdamBordeaux (FRA)FranceFranceMidfield
Õunpuu, KethyEstonia WOCOEstoniaEstoniaMidfield
Ouon, EdwinLevadiakos (GRE)RwandaRwandaDefender
Ouwejan, ThomasAZ (NED)NetherlandsNetherlandsMidfield
Ovadia, Bat ShevaIsrael WU17IsraelIsraelMidfield
Ovdiychuk, OlhaKharkiv (UKR) / Ukraine WOCOUkraineUkraineForward
Ovenberger, MatildaFCR Malmö (SWE) / Sweden WU17SwedenSwedenForward
Overmeire, KillianLokeren (BEL)BelgiumBelgiumMidfield
Oviedo, BryanEverton (ENG)Costa RicaCosta RicaDefender
Ovlien, AdrianNorway U19NorwayNorwayDefender
Ovono, DidierOostende (BEL)GabonGabonGoalkeeper
Ovsyannikov, Denys Lokomotiv (UKR) / Ukraine FUTUkraineUkraineForward
Owens, CharlieNorthern Ireland U19Northern IrelandNorthern IrelandMidfield
Owobowale, SegunNEC (NED)NetherlandsNetherlandsForward
Owoeri, JohnHäcken (SWE)NigeriaNigeriaForward
Owusu, Prince OseiGermany U19GermanyGermanyForward
Oxford, ReeceWest Ham (ENG) / England U19EnglandEnglandDefender