Enstrom won the Rookie of the Year award in the Swedish Elite League and played with the Swedish Under 20 team in 2002-03 and in the 2003 WJCs.
The Thrashers made the 5’10 offensive defenseman a contract offer in 2006, confirming that there is a now place in the NHL for small defensemen. Enstrom declined, however, deciding he wanted to get in another year in Sweden.
At 22 he was invited to play in the 2006 World Championships but had to decline since he was injured.
2006-07: Enstrom had a very good 2006-07 season. His team, MoDo, won the Swedish Elite League championship. He was eighth among league defensemen in points on the year with 28 in 55 games. Seven of those were goals.national team coach Bengt-Ake Gustavsson said that Enstrom was the best defenseman in the league after New Year’s. Thus it’s no surprise that Enstrom was a key part of the Swedish defense in the 2007 World Championships.