Deone Bucannon has been diagnosed with a concussion, Mike Jurecki of FOX Sports 910 Phoenix reports.

Bucannon has been diagnosed with a concussion, Mike Jurecki of FOX Sports 910 Phoenix reports.

Analysis:

Bucannon avoided the first injury report of the week, but the Cardinals included the pseudo-inside linebacker on Thursday's version, listing him with a concussion. His progress through the concussion protocol in the coming days will determine whether he takes the field Sunday at San Francisco. However, a DNP would be a massive blow to the heart of the defense.