Report: John Abraham could retire due to memory loss

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

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.

NFL Power Rankings Week 2: Plenty of movement below Seahawks, Broncos

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).

Cardinals LB John Abraham is suffering from memory loss and has been for well over a year, per sources. Could be end of his NFL career.

— Adam Schefter (@AdamSchefter) September 10, 2014

- Chris Johnson