He previously played in the National Hockey League with the Montreal Canadiens, Atlanta Thrashers, Colorado Avalanche, Tampa Bay Lightning and the Minnesota Wild.

[6] He again led the NHL in shifts per game before he was sidelined for the rest of the regular season and playoffs after suffering a dislocated shoulder on February 12, 2008.

[8] After eight seasons within the Avalanche organization Clark left as a free agent to sign a two-year contract with the Tampa Bay Lightning on July 5, 2010.

A free agent upon the 2012 NHL lockout, Clark signed an AHL contract with the Oklahoma City Barons during the midpoint of the 2012–13 season on January 21, 2013.

A free agent again well into the 2013–14 season, Clark signed a professional try-out with the Lake Erie Monsters on December 6, 2013, marking a return of sorts to NHL affiliate, the Colorado Avalanche.

Prior to the 2014–15 season, Clark announced the end of his playing career but remained in the Avalanche organization by accepting a player development consultant position.

Entering the 2021–22 season, Clark was slated to continue his role as an assistant coach with the Avalanche AHL affiliate, the Colorado Eagles, however vacated his position within the organization over COVID-19 protocols.