Raiders Place Malcolm Koonce on Injured Reserve, Sign Charles Snowden

Defensive end Malcolm Koonce's knee injury sidelines him for at least four weeks, prompting roster changes for the Las Vegas Raiders.

Malcolm Koonce's knee injury could potentially end his season, a significant blow to the Raiders' defense.
Charles Snowden has been promoted from the practice squad to fill Koonce's spot on the active roster.
Tyree Wilson and Janarius Robinson are expected to see increased playing time in Koonce's absence.
Koonce was coming off a career-best season with 8.0 sacks and was entering a contract year.
The Raiders also activated cornerback Sam Webb from the practice squad.