Atletico Madrid has seized control of their Champions League quarter-final tie, securing a commanding 2-0 first-leg victory over 10-man Barcelona at the Camp Nou.

Despite Barcelona's dominance in possession, Atletico's disciplined defense and effective counter-attacks proved decisive. The turning point came in the 42nd minute when Barcelona's Pau Cubarsi was red-carded for a last-man foul on Giuliano Simeone.

Julian Alvarez capitalized on the resulting free kick, expertly curling the ball into the top corner from 25 meters in first-half stoppage time, stunning the home crowd.

Atletico extended their lead in the 70th minute. Mateo Ruggeri delivered a cross from the left, and Alexander Sorloth volleyed home from close range, sealing a crucial away win for Diego Simeone's side.