Atletico Madrid have pushed back against the complaints made by Real Madrid manager Jose Mourinho regarding the officiating in Sunday’s derby clash. Mourinho arrived at the post‑match press conference clutching printed sheets that highlighted two specific moments he believed should have resulted in red cards for Atletico players. The former Chelsea boss accused the match officials of making decisive mistakes that, in his view, influenced the 2-1 defeat suffered by his side. In the days following the game, Atletico took to their X (formerly Twitter) account with two separate posts aimed at countering Mourinho’s accusations.

The first post featured a short video that displayed a printed sheet of paper bearing the hashtag "#StopAcosoArbitalYA," which translates to "stop referee harassment now." The second post showed an image of Mourinho holding up his printed evidence at the press conference, overlaid with the same hashtag, signalling the club’s displeasure with what they perceived as an unfair public attack on the referee. Mourinho had presented the two images of the tackles to the media, arguing that the referee had failed to issue red cards for what he described as a clear stamp by Atletico defender Cristian Romero on Real’s Jude Bellingham, as well as a challenge by Lee Kang‑in on Federico Valverde. He pointed out that Real were reduced to ten men only five minutes after the break, yet he felt the referee’s decisions were still biased against his team.

"We could skip the press conference because the story of the match is right here," Mourinho said, holding up the pictures 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 saw Real defender Dean Huijsen sent off for bringing down Giuliano Simeone inside the penalty area, which allowed Alejandro Grimaldo to slot home a low spot‑kick. Six minutes later, Jonathan David doubled Atletico’s lead, and Antonio Rudiger later headed in a free‑kick for Real, narrowing the gap but not enough to overturn the result. Mourinho praised his players for what he called a "first half full of class and great character," but his admiration was tempered by sharp criticism of the referee, Miguel Angel Ortiz Arias, and the officials responsible for his appointment. "They have placed a 41‑year‑old referee with no international experience in this match – it is certainly not because he is a great referee," Mourinho argued.

"The poor chap was unable to cope with the pressure, which was intense – I call it '80s‑style pressure' here in this stadium, something you rarely see these days." When asked about Real’s six‑point deficit behind Barcelona in the league, Mourinho responded with a pointed remark: "If they just leave us in peace and let us compete on a level playing field with everyone else, we still have a long way to go." He added, "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 released an official match report after full‑time that echoed many of Mourinho’s concerns. The La Liga club described the defeat as "marked by poor officiating" and specifically singled out Ortiz Arias for failing to send off Cristian Romero after a stamp on Bellingham’s knee, despite reviewing the incident on the monitor. The report also highlighted a second missed call involving Lee Kang‑in’s challenge on Valverde, where the referee allegedly saw the incident but chose not to issue any card.

According to the report, the first controversial moment occurred in the 35th minute when Bellingham reached a contested ball before Romero, who then planted his studs into the Madrid player’s left knee. Ortiz Arias initially booked Romero but, after being prompted by referee supervisor Trujillo Suárez to review the footage, rescinded the card for Bellingham and issued only a yellow to Romero instead of a dismissal. Nine minutes later, a similar situation unfolded when Lee Kang‑in struck Valverde’s left ankle with his studs.

Ortiz Arias was close to the incident but did not issue a red or even a yellow card, and no further intervention was made by the supervisory team. Atletico’s social‑media response, featuring the #StopAcosoArbitalYA campaign, was intended to highlight what the club sees as a pattern of undue criticism toward referees, especially after high‑profile matches. By framing the issue as "referee harassment," Atletico is positioning itself as defending the integrity of match officials while simultaneously questioning the motives behind Mourinho’s public outburst. The broader context of this dispute reflects an ongoing tension in Spanish football between clubs, managers, and the officiating body.

Managers frequently use post‑match interviews to voice grievances, hoping to influence future appointments or to sway public opinion. In recent seasons, several high‑profile refereeing controversies have sparked debates about the need for greater transparency, the use of video assistant referee (VAR) technology, and the criteria used to select referees for marquee fixtures such as the Madrid derby. Mourinho’s criticism also underscores a tactical dimension: a red card for an Atletico defender early in the game could have dramatically altered the dynamics, potentially giving Real a numerical advantage for a longer period.

By emphasizing the missed opportunities for dismissals, Mourinho is not only defending his team’s performance but also attempting to shift the narrative away from tactical shortcomings toward perceived officiating bias. In response, Atletico’s leadership has signaled that they will continue to monitor referee performance and will not hesitate to voice concerns when they believe decisions are unjust. The club’s use of a coordinated social‑media campaign suggests a more organized approach to handling such disputes, aiming to rally fans and neutral observers behind the cause of fair officiating.

As the season progresses, both clubs will likely keep a close eye on referee assignments, especially for critical matches that could determine league positions. Whether the governing bodies will adjust their protocols or provide additional training for referees remains to be seen, but the public exchange between Mourinho and Atletico highlights the high stakes and intense scrutiny that accompany top‑flight football in Spain.

Overall, the incident serves as a reminder that the outcomes of matches are shaped not only by the players on the pitch but also by the decisions made by officials, and that the dialogue surrounding those decisions continues to evolve in the age of instant replay and social‑media activism.