Raiders waive Mario Kurn

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The Raiders waived second-year linebacker Mario Kurn on Monday.

The 22-year-old Kurn spent the 2012 regular season on injured reserve after suffering a torn anterior cruciate ligament in August.

Kurn was a defensive end at the University of San Diego, where he notched 34.5 sacks from 2008 through 2011. The Raiders signed him as an undrafted free agent in April 2012.

The Raiders now have 89 players on the roster, one fewer than the limit.