Source: Cowboys release OLB Adrian Hamilton

IRVING, Texas – The Cowboys released promising undrafted rookie pass rusher Adrian Hamilton, according to a source.

Hamilton, a product of Dallas’ Carter High who broke three-time Pro Bowler Robert Mathis’ SWAC single-season record for sacks last year at Prairie View A&M, got caught in a numbers crunch at outside linebacker.

DeMarcus Ware and Anthony Spencer are established starters. Victor Butler is a solid backup whose role could be expanding, and the Cowboys invested a fourth-round pick in Kyle Wilber. Alex Albright, a second-year player, is one of the Cowboys’ best special teams performers and also has the advantage of being able to play all four linebacker positions.

The Dallas coaches and front office had questions about Hamilton’s ability to contribute on special teams, a must for a backup linebacker.

Hamilton, who fought through knee and wrist injuries during training camp, would be a prime candidate for the Cowboys’ practice squad if he clears waivers.