[citation needed] He joined the Thrashers for their 2005–06 season opener before being demoted to their AHL affiliate, the Chicago Wolves, for four games.

Slater missed the end of the 2016–17 regular season as a healthy scratch, after displaying poor performances and a lack of energy.

[citation needed] On July 21, 2017, as a free agent, Slater agreed to a one-year contract with HC Fribourg-Gottéron of the National League (NL).

On September 3, 2018, Slater was named to Michigan State's staff as a volunteer assistant coach, effectively ending his professional hockey career.

[10] His father, Bill Slater, was a defensive lineman in the National Football League (NFL) for the Minnesota Vikings and the New England Patriots.