• Collberg split the 2011-12 season between Frolunda’s junior and Elitserien squads. He totaled 17 points (9-8--17) in 21 games -- and also appeared in two postseason contests -- for the junior team.

• In 2010-11, he recorded 44 points (21-23--44) for Frolunda’s junior squad, plus another nine points (4-5--9) in seven playoff games.

• Collberg competed for Team Sweden at the 2012 Under-18 and World Junior Championships. He tied for the team lead with nine points (4-5--9) at the Under-18 tournament as Sweden took home a silver medal, and ranked second for his country with seven points (4-3--7) at the World Junior Championship, helping Sweden capture gold.