Belgium are clear favourites to win Group B, but there is a real chance for any one of the remaining three to grab second place - or finish as one of the best third-placed sides.
However, defeast for either side on Saturday would leave one team facing the prospect of having to take points off both Belgium and Russia to make it into the knockout stages - so a good start is crucial.
Date, kick-off time and venue
Denmark vs Finland is scheduled for a 5pm BST kick-off on Saturday, June 12, 2021.
The match will be held at Parken Stadium in Copenhagen.
Where to watch Denmark vs Finland
TV channel: The match will be televised on BBC One for free.
Live stream: UK viewers will be able to watch the match online via the BBC iPlayer.
Match coverage: Keep up to date with the action on our Euros LIVE blog.
Denmark vs Finland team news
Denmark XI: Schmeichel, Kjaer, Maehle, Christensen, Delaney, Braithwaite, Eriksen, Wass, Wind, Poulsen, Hojbjerg
Subs: Andersen, Vestergaard, Skov Olsen, Dolberg, Damsgaard, Norgaard, Lossl, Stryger Larsen, Cornelius, Ronnow, Jensen, Boilesen
Finland XI: Hradecky, Arajuuri, O'Shaughnessy, Toivio, Kamara, Lod, Pukki, Sparv, Uronen, Pohjanpalo, Raitala
Subs: Vaisanen, Taylor, Jensen, Schuller, Joronen, Soiri, Hamalainen, Kauko, Lappalainen, Jaakkola, Ivanov, Forss
Goalkeepers: Kasper Schmeichel, Jonas Lossl, Frederik Ronnow
Defenders: Simon Kjaer, Andreas Christensen, Jannik Vestergaard, Joachim Andersen, Mathias Jorgensen, Daniel Wass, Jens Stryger Larsen, Joakim Maehle, Nicolai Boilesen
Midfielders: Christian Eriksen, Thomas Delaney, Pierre-Emile Hojbjerg, Mathias Jensen, Christian Norgaard, Anders Christiansen
Forwards: Kasper Dolberg, Jonas Wind, Andreas Cornelius, Martin Braithwaite, Robert Skov, Mikkel Damsgaard, Yussuf Poulsen, Andreas Skov Olsen
Goalkeepers: Lukas Hradecky, Jesse Joronen, Anssi, Jaakkola
Defenders: Thomas Lam, Paulus Arajuuri, Jere Uronen, Juhani Ojala, Sauli Vaisanen, Nikolai Alho, Daniel O'Shaughnessy, Niko Hamalainen, Leo Vaisanen, Robert Ivanov
Midfielders: Jasin Assehnoun, Onni Valakari, Pyry Soiri, Fredrik Jensen, Joni Kauko, Glen Kamara, Rasmus Schuller, Tim Sparv
Forwards: Teemu Pukki, Lassi Lappalainen, Marcus Forss, Joel Pohjanpalo
Denmark vs Finland prediction
Denmark boast a strong historical record against Finland, and will be confident of victory in Copenhagen - especially with a strong midfield.
Denmark 2-0 Finland
Head to head (h2h) history and results
Denmark wins: 38
Finland wins: 11
Betting odds and tips
Denmark to win: 9/20
Finland to win: 7/1
Odds via 888sport (subject to change). Click here to find out more.