The website Pro Football Focus grades every player on every play in every game.
Based on PFF's analytics, here are five things to watch in Super Bowl XLVII:
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Michael Oher's pass blocking: In three playoff games this season, the Ravens' right tackle has allowed a quarterback pressure once every 35.7 pass blocks. In the three previous postseasons, he allowed a pressure once every 8.1 pass blocks.
Flag magnet Bernard Pollard: The Ravens' strong safety leads NFL safeties with eight penalties this season.
Shutdown corner Carlos Rogers: San Francisco's other starting cornerback allows a paltry 9.3 yards per catch. That's the lowest figure among starting corners.
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