Atalanta’s return to the Champions League saw them play out a 0-0 draw against Arsenal, but it was a missed penalty by Mateo Retegui that will be their biggest regret.
David Raya’s double save from Retegui’s spot-kick and follow-up header proved decisive at the Gewiss Stadium.
Meanwhile, Bukayo Saka tested Atalanta goalkeeper Marco Carnesecchi early on, but the Italian side grew into the game, dominating possession.
Retegui earned a penalty after Ederson was fouled in the box, but his failure to convert from the spot was the game’s turning point.
Despite late pressure from both sides, including near-misses from Juan Cuadrado and Gabriel Martinelli, neither team could break the deadlock.