Denmark defender Simon Kjaer said on Saturday that his side's progress to the knockout stage was a great achievement.
Denmark will face Croatia in Nizhny Novgorod on Sunday in their round of 16 match at the 2018 World Cup.
"I'm pleased and very proud to be Denmark captain at the World Cup and going to the knockout stage, it's so huge," said Kjaer.
"It's going to be after the World Cup that I can digest this. But we shouldn't be satisfied with this result," he added.