Gene Collier: Steelers defense transforms

By rigidly-enforced custom, an NFL halftime lasts exactly 12 minutes, nowhere near enough time to neutralize -- schematically or otherwise -- a force of nature like Detroit's Calvin Johnson.

Yet this was the story of Sunday's all-but-inexplicable Steelers episode, at least it was after Johnson caught six passes for 179 yards and two touchdowns in the first half at Heinz Field.

He was Megatron, and then he was Mega-gone.

"Absolutely nothing," Johnson said when asked later if he had anything in the way of an explanation.............


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