Atletico Madrid secured an impressive 2–0 win over Barcelona at Camp Nou in the first leg of their Champions League quarter-final, in a match that changed completely just before halftime. Barcelona started the game better and created more chances, but failed to convert their dominance into a goal, while Atletico remained compact and dangerous on the counter.
The turning point came in the 44th minute when Pau Cubarsí was shown a straight red card for a foul on Giuliano Simeone, leaving Barcelona with ten men. From the resulting free-kick deep into stoppage time of the first half (45+), Julián Álvarez scored with a brilliant curling effort to give Atletico the lead. The visitors took full control after the break and sealed the win in the second half when Alexander Sørloth found the net in the 77th minute, finishing off a well-worked team move.
Overall, the red card proved decisive as Barcelona struggled to recover despite creating several chances, while Atletico Madrid showed clinical finishing and strong defensive organization. The result gives Atletico a significant advantage heading into the second leg, leaving Barcelona with a difficult task to overturn the deficit.