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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Questions over out-of-regulation footballs have come up after the New England Patriots won the AFC Championship Game Sunday. Running back LeGarrette Blount ran for 148 yards and three touchdowns in the Patriots' 45-7 win over the Indianapolis Colts. Elsa/Getty Images 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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Aaron Hernandez was cut by the New England Patriots after he was arrested Wednesday. Hernandez faces first-degree murder charges in the death of Odin Lloyd, 27. Otto Greule Jr/Getty Images hide caption

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New England Patriots quarterback Tim Tebow throws during practice in Foxborough, Mass., on Tuesday. Charles Krupa/AP hide caption

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Tim Tebow (right) shakes hands with New England Patriots quarterback Tom Brady after the Patriots defeated the Broncos on Dec. 18, 2011. Now, they're due to be teammates. Mark Leffingwell /Reuters /Landov hide caption

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New York Giants quarterback Eli Manning holds the Vince Lombardi Trophy after the NFL Super Bowl XLVI game against the New England Patriots, Sunday (Feb. 5, 2012). Charlie Riedel/AP hide caption

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