There are important points at stake when Denmark take on tonight's hosts who got off to a flying start with a 5-1 win over Belarus, while Denmark disappointed with a goalless draw against Scotland on Friday.
For tonights match Brian Riemer has chosen to go back to a 4-3-3 formation, just as the national coach has made two changes from the start against Greece.
Victor Froholdt and Andreas Skov Olsen are new to the Danish starting line-up. The duo replaces Kasper Dolberg and Anders Dreyer, both of whom were part of a Danish attacking formation which had a poor game against Scotland.
On the other hand, Riemer was happy with the defense, and he hasn't made any changes to the Danish rearguard.
But it is worth noting that 19-year-old Victor Froholdt, who swapped FC Copenhagen for FC Porto this summer, slides into the midfield together with Morten Hjulmand and Pierre-Emile Hojbjerg.
The match starts at 20:45 Danish time at the Stadio Georgios Karaiskakis, which is the home ground for Olympiakos.
Here is the Danish lineup:
Kasper Schmeichel – Rasmus Nissen Kristensen, Joachim Andersen, Andreas Christensen, Joakim Maehle – Pierre-Emile Hojbjerg, Morten Hjulmand, Victor Froholdt – Andreas Skov Olsen, Mika Biereth, Mikkel Damsgaard