The Union of European Football Associations said FIFA "crossed a red line" by lifting U.S. striker Folarin Balogun's one-match suspension.Why it matters: UEFA, which represents most of Europe's soccer federations, came out swinging after FIFA reversed course — a move that followed President Trump's call to FIFA President Gianni Infantino demanding answers about why the U.S. star had been sidelined.What they're saying: "Football, like any other sports, relies on rules, which are the basis for fair, honest and transparent competition. Sometimes rules are open to interpretation. In this case not," UEFA said in a statement posted to its website."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."A one-match ban after a red card isn't a "discretionary option," UEFA said, and that rule can't be lifted mid-tournament while other players serve their suspensions."Football is the most loved sport in the world because it is a beautiful game and is trusted because it is played everywhere with the same laws. … We express our disbelief at such an unprecedented, incomprehensible and unjustifiable decision."U.S. Soccer did not respond to Axios' request for comment.Catch up quick: Balogun was shown a red card against Bosnia on Wednesday after his cleat caught a defender's leg and slid down toward the ankle as he chased a loose ball.He was only given the red card after a video review. Balogun has either scored or assisted in every game he's played, so losing him would have left the U.S. without its most dangerous attacker against Belgium.Trump called Infantino, and FIFA lifted the ban for a one-year probationary period, causing some fans to decry political meddling.What we're watching: Balogun is expected to suit up Monday night against Belgium at 8pm ET in Seattle.Winning would send the U.S. to its first quarterfinal since 2002.The winner's next-round matchup will be against one of two heavyweights: Spain or Portugal.Here's how to watch.Go deeper: Trump called FIFA's Infantino over Balogun suspension