John Abraham's career in doubt, Marcus Benard signed

Arizona Cardinals outside linebacker John Abraham's career is in doubt due to a concussion.

The Cardinals have been given a roster exemption for Abraham, who may have to retire as a result of this latest head injury.

They have signed Marcus Benard as a potential replacement.

Abraham, 36, has 133.5 career sacks.

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Aaron Wilson covers the Ravens for The Baltimore Sun

Aaron Wilson
Aaron Wilson covers the NFL for National Football Post, his second stint at the Post. He has previously written for Pro Football Talk and FOX Sports-Scout. Entering his 13th year covering the Baltimore Ravens, he's a beat writer for The Baltimore Sun. Wilson has also covered the Jacksonville Jaguars and Tennessee Titans.

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