TSN is reporting that Preds defenseman Alexander Sulzer is one of several players hitting the waiver wire as teams around the league trim their rosters to the 23-man limit for the start of the regular season.
Sulzer is on a one-way contract paying him $700,000 this season, so perhaps the Preds wouldn't be distressed to see another team take that salary off their hands by claiming him. This is a bit of an odd move, because if he clears waivers and goes to Milwaukee, he'd have to go through recall waivers in order to come back to Nashville later on. Aaron Johnson, however, would not (because he has a two-way contract which only pays him $105,000 at the AHL level). He was just assigned to the Admirals this morning.
This would appear to make Johnson the odds-on favorite to be the emergency defenseman for the Predators, but if left in Milwuakee, it would appear to represent a risk for the Preds. In the event that someone got hurt during a day-of-game practice, there wouldn't be time to get Johnson into the lineup that evening.