Minnesota Vikings outside linebacker Chad Greenway, left, sacks San Francisco 49ers quarterback Alex Smith during the first half of an NFL football game on Sunday, Sept. 23, 2012, in Minneapolis. (AP ...
more Minnesota Vikings outside linebacker Chad Greenway, left, sacks San Francisco 49ers quarterback Alex Smith during the first half of an NFL football game on Sunday, Sept. 23, 2012, in Minneapolis. (AP Photo/Genevieve Ross)
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