The match, which took place at the Atleti Azzurri stadium in Bergamo, ended with a score of 2: 2.
As part of the hosts, Duvan Zapata scored a double.
Dusan Tadic and Lassina Traore scored among the guests.
Russian midfielder of the Italian team Alexei Miranchuk did not enter the field, remaining in reserve.
Atalanta are second in Group D with four points.
Ajax has the third line and one point in the asset.
Earlier, Atletico beat Salzburg in the Champions League match.