COPENHAGEN—Kasper Schmeichel described his feelings after Denmark’s win over Russia at the European Championship with one word. ”Euphoria,” the goalkeeper said. That sense of unbridled joy is a nice feeling for a team that’s been through, as Schmeichel put it, ”a turbulent emotional roller coaster” at Euro 2020 but now has every reason to look forward with optimism. The 4-1 win over Russia secured a spot in the round of 16 for Denmark, where it will play Wales on Saturday in Amsterdam. ”After the last 10–12 days that we’ve been through, it feels great to advance,” Schmeichel said. ”So much has happened, but now the Euros start in earnest for us. We have a chance to make this a really good tournament after a very, very difficult start.” That start, with Christian Eriksen suffering cardiac arrest during the opening game against Finland, has made Denmark a sentimental favorite for many …