Berggren made his Swedish Hockey League debut last season and did not have a point in 10 games for Skelleftea AIK. Earlier last season, he had 57 points (18 goals, 39 assists) in 38 games with Skelleftea AIK's junior team.
At 5-foot-10 and 181 pounds, he doesn't have ideal size for an NHL forward, a factor that perhaps kept Berggren out of the first round.
"I'm not going to be the biggest or strongest guy on the ice," he said, "so I have to use my speed. I was sad to not be picked; I had a good season."
Berggren's role model isn't one of Detroit's Sweden-born players, but rather Nashville Predators forward Viktor Arvidsson, who was selected in the fourth round (No. 112) of the 2014 NHL Draft. Arvidsson has scored 60 goals over the past two seasons for the Predators.
"I play for Skelleftea, which is his former team, so I look up to him," Berggren said. "We are both smallish players with a lot of speed, so yeah."
But Arvidsson had a major experience advantage over Berggren; he was 21 when he was drafted and played 106 games in Sweden's top league, 96 more than Berggren.
Berggren likely will play the next two seasons with Skelleftea and visit Detroit for offseason developmental work.
In the meantime, the Red Wings will consider themselves lucky to have him in the pipeline.
"We're happy," Red Wings director of European scouting Hakan Andersson said. "He's young. He led the Swedish Junior League in scoring this year and a couple other teams said they were going to take him right after us."