Nfl

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Lauren Silberman boots the ball during kicker tryouts at the NFL football regional combine workout Sunday, March 3, 2013, in Florham Park, N.J. (AP Photo/Mel Evans)

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**FILE** In this Dec. 2, 2012 file photo, San Francisco 49ers quarterback Alex Smith warms up as 49ers head coach Jim Harbaugh, left, stands nearby before the start of an NFL football game against the St. Louis Rams in St. Louis. A person with knowledge of the trade tells The Associated Press that the Kansas City Chiefs have agreed to acquire Smith from San Francisco. The person spoke on condition of anonymity on Wednesday, Feb. 27, 2013, because the trade does not become official until March 12, when the NFL's new business year begins. (AP Photo/Tom Gannam, File)

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**FILE** San Diego Chargers general manager A.J. Smith looks on from sidelines during an NFL football game between the San Diego Chargers and the Miami Dolphins Sunday, Sept. 27, 2009, in San Diego. (AP Photo/Denis Poroy)

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Notre Dame linebacker Manti Te'o runs a drill during the NFL football scouting combine in Indianapolis, Monday, Feb. 25, 2013. (AP Photo/Dave Martin)

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Notre Dame linebacker Manti Te'o addresses reporters at the NFL scouting combine in Indianapolis. Associated Press

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Black Eyed Peas singer Fergie and her husband, actor Josh Duhamel (right), walk on the sidelines during the first quarter of an NFL football game between the San Francisco 49ers and the Miami Dolphins in San Francisco on Dec. 9, 2012. (AP Photo/Marcio Jose Sanchez)

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**FILE** New England Patriots defensive end Ron Brace (97) looks for the ball against the Kansas City Chiefs during the fourth quarter of an NFL football game in Foxborough, Mass., Monday Nov. 21, 2011. (AP Photo/Elise Amendola)

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Baltimore Ravens president Dick Cass, from left, head coach John Harbaugh, general manager and executive vice president Ozzie Newsome and owner Steve Bisciotti speak alongside the Vince Lombardi Trophy at an NFL football news conference on Thursday, Feb. 7, 2013, in Owings Mills, Md. The Ravens beat the San Francisco 49ers 34-31 in Super Bowl XLVII last Sunday. (AP Photo/Patrick Semansky)