Atletico Madrid did not take kindly to Real Madrid manager Jose Mourinho's outspoken condemnation of the officiating after Sunday’s fiercely contested derby. The Portuguese coach arrived at the post‑match press conference clutching printed sheets that highlighted two incidents he believed should have resulted in red cards for Atletico players. Mourinho argued that the referee’s decisions had a decisive impact on the 2‑1 defeat suffered by his side, and he did not shy away from laying the blame squarely on the officials.

In retaliation, Atletico took to their official X (formerly Twitter) account on Monday with a pair of posts aimed at silencing what they termed harassment of referees. The first post featured a short video in which a piece of paper was printed with the hashtag "#StopAcosoArbitalYA," a Spanish phrase that translates to "stop referee harassment now." The second post displayed an image of Mourinho at the press conference, overlaid with the same hashtag, making it clear that the club was pushing back against the criticism. Mourinho’s grievances centered on two specific moments.

The first involved Atletico defender Cristian Romero, who was accused of stamping on Real’s Jude Bellingham. Mourinho insisted that Romero’s challenge merited a straight red card, but the referee only issued a caution. The second incident concerned Lee Kang‑in’s challenge on Federico Valverde, which also went unpunished.

Both incidents occurred before Real were reduced to ten men just five minutes after the break, a situation that Mourinho claimed should have left the home side with a numerical advantage for a significant portion of the match. "We could skip the press conference because the story of the match is right here," Mourinho said, holding up the printed images as he launched into a nearly five‑minute tirade. "Those were two clear red cards. The difficulties we faced after the sending‑off – eleven against ten – we can only imagine what fifty minutes of eleven against nine would have looked like if justice had been done." The match itself unfolded with Real defender Dean Huijsen being sent off for a foul on Giuliano Simeone inside the penalty area, a decision that allowed Alejandro Grimaldo to convert a low spot‑kick.

Atletico then extended their lead six minutes later through a strike by Jonathan David. Antonio Rudiger later headed in a free‑kick for Real, narrowing the gap but not enough to overturn the deficit.

While Mourinho praised his players for a first half he described as "full of class and great character," his criticism of referee Miguel Ángel Ortiz Arias was unrelenting. He questioned the appointment of a 41‑year‑old official with no international experience, suggesting that the league had not chosen him for his refereeing prowess. "Then the poor chap has come here and hasn't been able to cope with the pressure – and it really is intense pressure. I call it '80s‑style pressure' here in this stadium, which you hardly ever see these days," Mourinho added.

When asked about Atletico’s six‑point deficit behind Barcelona, Mourinho replied pointedly: "If they just leave us in peace and let us compete on a level playing field with everyone else, we've still got a long way to go." He stopped short of alleging a conspiracy, saying, "I don't want to go so far as to say this was set up… I want to believe that they simply made a mistake." Real Madrid’s own match report echoed many of Mourinho’s points, describing the encounter as "marred by poor officiating." The club’s statement singled out Ortiz Arias for failing to dismiss Cristian Romero after a review of the incident involving Bellingham’s knee, and for overlooking Lee Kang‑in’s challenge on Valverde’s ankle. According to the report, the referee initially booked Romero but, after a review prompted by referee supervisor José María Trujillo Suárez, rescinded the card and only issued a yellow. A similar oversight occurred nine minutes later when Lee’s studs struck Valverde’s ankle, yet no card was shown. Both clubs have now entered a public debate about the standards of refereeing in La Liga, with Atletico using social media to defend the officials and Real and Mourinho continuing to demand accountability.

The controversy highlights the growing tension between clubs, managers, and the governing bodies responsible for appointing and supervising match officials. As the season progresses, the spotlight will remain on whether the league will take steps to improve referee training, introduce more transparent review processes, or perhaps adopt technology such as VAR more consistently to avoid repeat incidents.

Beyond the immediate fallout, the incident raises broader questions about the influence of high‑profile managers on public perception of officiating. Mourinho’s dramatic presentation of printed evidence and his impassioned speeches have become a hallmark of his post‑match routines, often shaping narratives that extend far beyond the final whistle. Atletico’s response, meanwhile, underscores a growing willingness among clubs to engage directly with fans on social platforms to counteract what they see as unfair criticism. In the weeks ahead, both sides will likely continue to monitor the referee’s performance and the league’s response.

For Atletico, the focus will be on maintaining momentum in the title race while navigating the scrutiny of their own defensive discipline. For Real, the goal will be to regroup after a disappointing derby loss and address the tactical and disciplinary issues highlighted by Mourinho. Ultimately, the episode serves as a reminder that in modern football, the battle is fought not only on the pitch but also in the media arena, where words, hashtags, and public statements can have a lasting impact on reputations and results.