The dream has turned into a nightmare Champions League debut, as Atalanta are 3-0 down at half-time to Dinamo Zagreb.
This was an historic occasion, as Atalanta made their Champions League debut, becoming the 141st different club to feature in the group stage, the 10th representative from Italy. They had actually met Dinamo Zagreb before, in the 1990-91 UEFA Cup first round, going through on away goals after a 1-1 draw in Croatia.
Josip Ilicic threatened with a dangerous ball that flashed across the face of goal, but Dinamo were very aggressive and took the lead after 10 minutes. After a series of shots were charged down in the box, the Petar Stojanovic ball was rolled across from the right for Marin Leovac to spring the offside trap and slide in from close range.
Atalanta struggled to get into their usual groove and Dinamo doubled their lead, as Leovac pulled back from the left for Orsic to drill low into the far bottom corner from the edge of the box.
Atalanta were getting torn apart at the back, as Ademi nodded a ball back across the face of goal at the back post and Orsic was allowed a free header from a couple of yards for 3-0.
Dinamo Zagreb 3-0 Atalanta (Half-Time)
Leovac 10 (D), Orsic 31, 42 (D)
Dinamo Zagreb: Livakovic; Stojanovic, Theophile-Catherine, Peric, Leovac; Moro, Dilaver, Ademi; Dani Olmo, Petkovic, Orsic
Atalanta: Gollini; Toloi, Djimsiti, Masiello; Hateboer, Freuler, De Roon, Gosens; Gomez; Ilicic, Duvan Zapata
Ref: Gil Manzano (ESP)