They will raise the curtain at Stockhorn Arena, Thun, against Dagný Brynjarsdóttir's Iceland (Wednesday 2 July, kick-off 5pm BST) in the opening game of the tournament, before travelling to Sion to face Norway (Sunday 6 July, 5pm BST) at Stade Tourbillon and then hosts Switzerland (Thursday 10 July, 8pm BST) at Stade de Genève, Geneva.
Moreover, for Siren, as well as going into battle with Nyström, she will also be playing at Euro 2025 with her twin-sister Emmi - who made her Finland debut in 2023 and currently plays for Danish outfit Nordsjælland.
“I think it’s really cool to have people who you know there," said Siren. "And I think it’s really nice that we get to play the first game against Switzerland because they are hosting the tournament.
“It will be very special [to play with my sister] and I can’t wait to experience that together, because for both of us it’s been a big dream to play at the Euros some day.”
Nyström added: “It’s a nice group and to play against players that you know. It's always a bigger battle between the players and it’s nice to play against the hosting team. I’m looking forward to it.
“It’s nice to have a teammate in the national team as well. We know each other quite well on the pitch, so it will help us both.”