(AP Photo/File)

JACKSONVILLE, Fla. (AP) Former Jacksonville Jaguars linebacker Russell Allen will retire after suffering a concussion and a stroke in a game last December.

Allen told MMQB.si.com that he has a dead spot - no bigger than a dime - on his cerebellum. The cerebellum controls motor movement and coordination.

The Jaguars released Allen last week after his personal physician consulted with Jacksonville's medical staff before a scheduled physical.

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