Vancouver Canucks defenseman Alexander Edler is having back surgery and will be out indefinitely. Edler, who leads the Canucks with 24 minutes of ice time a game and tops the team's defense with 32 points, missed Wednesday's game against Nashville. The team announced Thursday that he would have microdiscectomy surgery, which relieves pressure on a herniated disk. There is no timeline for his return. Edler, who plays on the top power-play unit and kills penalties, was injured during Monday's win against Dallas. The 24-year-old finished the game. Read more: http://sports.espn.go.com/nhl/news/story?id=6065266