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New England Patriots quarterback Tom Brady, seen here arriving at NFL headquarters last month, sought to destroy evidence in the "deflategate" incident, says NFL Commissioner Roger Goodell. Shannon Stapleton/Reuters /Landov hide caption

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Shannon Stapleton/Reuters /Landov

New England Patriots owner Robert Kraft shows the Vince Lombardi Trophy to the crowd during a parade in Boston on Feb. 4. He said Tuesday his team won't appeal the punishment handed to it by the NFL in connection with the "Deflategate" scandal. Steven Senne/AP hide caption

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Steven Senne/AP

New England Patriots quarterback Tom Brady has been suspended without pay for the first four games of the 2015 season, for "conduct detrimental to the integrity of the NFL." Larry W. Smith/EPA/Landov hide caption

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Larry W. Smith/EPA/Landov

Tom Brady of the New England Patriots was named MVP of the Patriots' Super Bowl win over the Seattle Seahawks. A new NFL report suggests he was aware of cheating by team personnel who tampered with game balls. Jamie Squire/Getty Images hide caption

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Jamie Squire/Getty Images

New England Patriots head coach Bill Belichick speaks during an NFL football news conference at Gillette Stadium, on Saturday in Foxborough, Mass. Belichick defended the team against allegations they had cheated by using underinflated footballs in a championship game. Steven Senne/AP hide caption

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Steven Senne/AP

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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Elsa/Getty Images

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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Elise Amendola/AP

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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Elsa/Getty Images

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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Tom Pennington/Getty Images

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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Otto Greule Jr/Getty Images