Norway opened their Nations League campaign with a thrilling 3-2 win over rivals Denmark.
Oscar Bobb opened the scoring in the 14th minute off a pass from Martin Odegaard, before Erling Haaland doubled the lead just four minutes later. Denmark fought back through Mikkel Damsgaard's 25th-minute free-kick and Rasmus Hojlund's 60th-minute equalizer.
However, Haaland struck again in the 74th minute to seal the victory, with Norway holding firm despite David Moller Wolfe's late red card.
Portugal secured a hard-fought 1-0 victory over Wales in their Group D opener.
The decisive moment arrived in the 22nd minute when Joao Felix netted the game's only goal, converting a key setup from left-back Nuno Mendes. Portugal dominated possession with 61% and created 20 total shots, maintaining full control throughout.
Wales struggled to find clear opportunities, managing just one shot on target as Portugal comfortably saw out the win.
Greece staged an impressive late comeback to claim a 2-1 victory against Serbia.
Andrija Zivkovic gave Serbia an early lead in the 4th minute, putting the home side ahead for much of the contest. Greece relentlessly pushed forward and finally broke through in the 74th minute with a equalizer from Christos Tzolis.
In dramatic fashion, substitute Anastasios Douvikas scored deep into stoppage time (90+5') to steal all three points for the visitors.
Norway have withdrawn Erling Haaland from Saturday's scheduled press conference ahead of Sunday's Nations League clash with Portugal in Oslo, following reports surrounding Manchester City's financial case.
Zinedine Zidane began his France reign with a hard-fought 1-0 win over Turkey, but the new head coach warned his players that tactical balance will be crucial to their success.
Erling Haaland made history with a two-goal display as Norway beat Denmark 3-2 in the Nations League, taking him past Zlatan Ibrahimovic as the highest-scoring Nordic men's international player.
Netherlands manager Xavi has recalled Manchester United striker Joshua Zirkzee after Brian Brobbey was ruled out of the remainder of the international break with a muscle injury.
