CB Shields doubtful for banged-up Packers
 

[URL="http://api.tweetmeme.com/share?url=http://espn.go.com/nfl/story/_/id/7132413/sam-shields-doubtful-banged-green-bay-packers-vs-minnesota-vikings&service=bit.ly&source=espn"][IMG]http://api.tweetmeme.com/imagebutton.gif?url=http://espn.go.com/nfl/story/_/id/7132413/sam-shields-doubtful-banged-green-bay-packers-vs-minnesota-vikings[/IMG][/URL]The unbeaten Green Bay Packers have some health concerns going into Sunday's game at Minnesota.Cornerback Sam Shields didn't practice this week and is doubtful to play because of a concussion that knocked him out of the Packers' last game. Defensive end R

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