The first major controversy of the Arsenal vs. Atlético de Madrid semifinal second leg arrived after six minutes, when Marcos Llorente appeared to grab Riccardo Calafiori inside the Atlético penalty area as a cross dropped into the box. The referee did not award a penalty, and VAR also saw no reason to intervene.
The incident immediately became the flashpoint of a match already carrying the weight of a UEFA Champions League semifinal second leg. It centered on whether Llorente’s challenge on Calafiori was enough to justify a spot kick, or whether the contact fell short of a foul the officials should punish.
That is why the moment matters today: in a game this tight, the first major decision can shape how both teams approach everything that follows. Arsenal had the early appeal, Atlético had the reprieve, and the officials were left to defend a call that could be judged against the slow-motion evidence now sitting at the center of the debate.
The tension in this case is simple. The footage points to a grab in the area, but the referee and the video review did not see it as penalty-worthy. That gap between what was seen in real time and what the replay showed is exactly what turns a routine passage of play into the first controversy of the night.
For now, the question hanging over the match is whether Arsenal were denied a penalty on Marcos Llorente against Riccardo Calafiori, a decision that will be revisited as the semifinal second leg unfolds.