FC Copenhagen were drawn against the big clubs Borussia Dortmund, Barcelona, and Tottenham in the Champions League league phase.
The Danish champions will also meet German outfit Bayer Leverkusen, Villarreal, and Napoli.
This means that Jacob Neestrup's side will come face-to-face with Danish compatriot Thomas Frank, who has taken over the coaching seat at Tottenham.
The clash against Tottenham will be played away in the English capital.
The match against Dortmund takes place in Parken Stadium, while the match against Barcelona will be played in Spain.
Napoli, who are the defending Italian champions, will also visit the Parken Stadium in Copenhagen.
The final dates for the league phase are yet to be determined.
FC Copenhagen has previously met Dortmund and Barcelona in the Champions League.
In 2022, the Danes drew 1-1 with Dortmund at home. The Germans won 3-0 away.
In 2010, FC Copenhagen were drawn in the group phase with mighty Barcelona, and the Danes sensationally drew 1-1 at home against Lionel Messi & Co.