By SI Wire
September 10, 2014

Arizona Cardinals linebacker John Abraham has been suffering from memory loss for more than a year and could be done with football, according to a report from ESPN's Adam Schefter.

Abraham has left the team and Arizona, which received a temporary roster exemption, has signed Marcus Bernard to replace him. 

Abraham suffered a concussion in the Cardinals' loss to the San Diego Chargers on Monday night. Coach Bruce Arians said Tuesday that Abraham was going through the league's concussion protocol.

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Abraham, 36, is in his 15th season in the NFL. The five-time Pro Bowler recorded 31 tackles and 11.5 sacks last season. Abraham is the NFL's active sack leader (133.5).

- Chris Johnson

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