Tom Brady of the New England Patriots celebrates with the Vince Lombardi Trophy after defeating the Seattle Seahawks 28-24 to win Super Bowl XLIX at University of Phoenix Stadium on Sunday in Glendale, Arizona. Christian Petersen/Getty Images hide caption

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Malcolm Butler (right) of the New England Patriots intercepts a pass intended for Ricardo Lockette of the Seattle Seahawks late in the fourth quarter of Super Bowl XLIX on Sunday. Timothy A. Clary/AFP/Getty Images hide caption

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The defending champion and favorite remains the chicken wing. But underdog snacks like the carrot are trying to elbow their way into the competition. Leif Parsons for NPR; Source: whologwhy/Flickr hide caption

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Bill Parcells has been coach to the Dallas Cowboys, the New York Giants, the New England Patriots and the New York Jets. Robert B. Stanton/Getty Images hide caption

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Tom Brady of the New England Patriots hands the ball off to LeGarrette Blount during the AFC Championship Game. The Patriots are being investigated because of game balls that were improperly inflated. Elsa/Getty Images hide caption

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New England Patriots head coach Bill Belichick, seen here on Jan. 18, says he "had no knowledge" about the controversy over deflated footballs "until Monday morning." Elise Amendola/AP hide caption

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Luke Willson (#82) of the Seattle Seahawks celebrates after scoring on a two-point conversion during the fourth quarter of the 2015 NFC Championship game against the Green Bay Packers on Sunday. Seattle won 28-22. Tom Pennington/Getty Images hide caption

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Super Bowl volunteer Ben Schreiber distributes fan guides for Super Bowl XLVI festivities in 2012. Chad Ryan/CSM/Landov hide caption

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