After making $2 million last year, Guerin posted nine points in 11 playoff games, following a 45 point regular season which included 21 goals.
With the veteran hitting the market, there could be a couple of teams with interest despite a relatively slow August in free agency (until the last three days).
Guerin plays right wing, which isn't much of a need for the Kings right now. However, his price tag and experience might make him a solid checking line option on a young team.
The Thrashers have added a number of players this summer, mostly from Chicago, but could use another 20-goal scorer and veteran.
They're one of the youngest teams in the league and have plenty of cap space. Adding a productive veteran with a lot of postseason experience follows the model Chicago used to win the Cup, and he could be a nice fit in Denver.
Basically, they need to get to the salary floor, and Guerin would add salary, experience, and quality to their roster.