Vikings activate Chris Cook

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As the Vikings prepare to try to contain Texans receiver Andre Johnson, they’ll have some more help.

Cornerback Chris Cook has been activated from injured reserve.  The team announced the move this afternoon.

Cook suffered a broken arm two months ago against the Buccaneers.  The second-round pick from the 2010 draft bolsters a secondary that has been much improved in 2012.  As coach Leslie Frazier recently indicated, however, it’s unclear how much Cook will be able to play.

The Vikings are much improved, too.  Already five wins better than 2011, they are chasing an unlikely playoff berth.

UPDATE 2:50 p.m. ET:  The Vikings also promoted defensive end George Johnson from the practice squad, which could mean that defensive end Brian Robison (shoulder) will be unable to play.