Julián Álvarez opened the scoring for Atlético Madrid in the 39th minute, netting his ninth goal of the season after a decisive run and assist from Giuliano Simeone. The hosts appeared to double their lead before halftime when Antoine Griezmann finished from close range, but the goal was ruled out for offside by VAR.
Union Saint-Gilloise nearly equalized early in the second half, with Promise David missing a clear chance after Anouar Ait El Hadj’s set piece. Atlético doubled their lead in the 72nd minute as England international Conor Gallagher, recently signed from Chelsea, capitalized on a rebound to fire into the top corner just ten minutes after coming on as a substitute.
Union responded eight minutes later, when Ross Sykes, a former Accrington Stanley defender, headed home from a Sofiane Boufal cross, making it 2-1 and setting up a tense finish. However, Atlético sealed the result deep into stoppage time as substitute Marcos Llorente scored his third goal of the competition, ensuring all three points stayed in Madrid.
With this win, Atlético Madrid move up to 14th in the league phase standings, while Union Saint-Gilloise remain at 26th. The result helps Diego Simeone’s side recover from their previous 4-0 loss to Arsenal and keeps them in contention for the knockout stages.
For a full match report and player statistics, visit Atlético 3-1 Union SG (Nov 4, 2025) Game Analysis. Further details and updates on the Champions League can be found on the Atlético Madrid English Twitter and the UEFA match facts page.