Denver Broncos quarterback Peyton Manning during Sunday's Super Bowl. Some players on the Seattle Seahawks say they studied his hand signals. That helped them shut down the Broncos defense, they say. Kevin C. Cox/Getty Images hide caption

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Seahawks quarterback Russell Wilson stiff-arms Broncos cornerback Champ Bailey on Sunday during Super Bowl XLVIII at MetLife Stadium in East Rutherford, N.J. Jeff Zelevansky/Getty Images hide caption

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Seattle Seahawks cornerback Richard Sherman has been fined by the NFL for unsportsmanlike behavior after his team's win over San Francisco in the NFC title game. He's seen here on the sideline after tipping a pass that led to a game-clinching interception. Otto Greule Jr/Getty Images hide caption

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A Seattle Seahawks fan at Monday night's game, when he and other helped set a new noise record and made the ground rumble. Elaine Thompson/AP hide caption

itoggle caption Elaine Thompson/AP

Confusion: One official (to the left) signals touchdown for Seattle. The other signals that a touchback — possession — for Green Bay. Stephen Brashear/AP hide caption

itoggle caption Stephen Brashear/AP