UEFA has strongly criticized FIFA after the world governing body deferred a one-game suspension for United States forward Folarin Balogun, allowing him to play in Monday's World Cup round of 16 match against Belgium.
Balogun received a straight red card last Wednesday during a 2-0 victory over Bosnia-Herzegovina for a dangerous challenge on defender Tarik Muharemovic.
Such an offense typically carries a multi-game ban.
FIFA placed Balogun on a one-year probation instead of enforcing an immediate ban, a decision that drew widespread backlash from international soccer figures.
Norway head coach Ståle Solbakken called it "a bad, bad, bad, bad, bad decision that will hurt the World Cup."
UEFA expressed deep concern over the integrity of tournament regulations. "Sometimes rules are open to interpretation.
In this case not," UEFA stated in an official release.
The European body noted that multiple players had already served standard suspensions under identical circumstances during the tournament.
Officials emphasized that disciplinary consistency must remain absolute.
"When the certainty of rules is no longer guaranteed by its guardians, the integrity of the game is at stake and the credibility of a competition is undermined," UEFA added.
UEFA highlighted the lack of precedent for such an intervention.
The decision marks an expansion of a May policy shift that allowed select players to defer qualifiers-related bans.
"We express our disbelief at such an unprecedented, incomprehensible and unjustifiable decision," UEFA announced.
Previous disciplinary exceptions included Portugal's Cristiano Ronaldo, who had two games of a three-game ban deferred.
In contrast, South Africa's Themba Zwane was excluded from the tournament after receiving a three-game suspension without probation for a similar infraction.
"It is a principle embedded in regulations, which cannot be made subject to exceptions, let alone in the middle of a tournament where several other players have been in the same situation and regularly served their suspension," UEFA asserted.
Balogun publicly commented on the referee's decision, saying, "I think a yellow card would have been fair."
FIFA justified its revised disciplinary approach in May as an effort to ensure nations could field optimal rosters.
The Belgian soccer federation launched an overnight appeal in Seattle to challenge the ruling before a FIFA appeals judge prior to the match.
