The San Francisco 49ers activated outside linebacker Aldon Smith to the 53-man roster following his suspension.

They placed cornerback Jimmie Ward on injured reserve, ending his season.

Ward has a foot injury.

The 49ers didn't activate nose tackle Glenn Dorsey.

He remains on injured reserve with a torn biceps.

The 49ers had a roster exemption for Smith, who spent the first nine games on the suspended list.

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Aaron Wilson covers the Ravens for The Baltimore Sun