BARCELONA, Spain (Interstat) — Club Atlético de Madrid delivered a major upset Wednesday, defeating Barcelona 2-0 in a Champions League match at Spotify Camp Nou.

The visitors capitalized after Barcelona defender Pau Cubarsí was shown a red card in the 44th minute. Substitute Julián Álvarez scored moments later in first-half stoppage time. Atlético sealed the victory in the 70th minute with a goal from fellow substitute Alexander Sørloth.

Assists came from Atlético’s Koke and Marc Pubill. The result defied pregame projections that heavily favored Barcelona. The match featured six yellow cards in addition to the decisive red. Atlético begins its European campaign with a win, while Barcelona starts with a loss.