Las Vegas Raiders pass rusher Malcolm Koonce was placed on injured reserve Saturday, knocking him out of at least the team’s first four games. The Raiders signed Charles Snowden off their practice squad to replace him on the roster.

Las Vegas Raiders defensive end Malcolm Koonce is out for the season due to a knee injury suffered in practice three days before the team's season opener, a team source confirmed Friday night. Koonce,

Koonce came on strong the latter half of last season and was entering a contract year with the hopes of earning a long term deal. This puts a damper on that as well as the hopes of he and Maxx Crosby continued to be a pass rushing duo for the Raiders again this season.