New England Patriots quarterback Tom Brady gestures during an event at Salem State University in Salem, Mass. on May 7, 2015. An NFL investigation has found that New England Patriots employees likely deflated footballs and Brady was "at least generally aware" of the rules violations. Now, he faces a four-game suspension and the Patriots a $1 million fine. Charles Krupa/AP hide caption

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Wide receiver Dwayne Bowe greets fans before a Kansas City Chiefs game last November. After fan Betty Johnson, known to players as "Grandma," died at 86 last week, Bowe flew back to Kansas City. Charlie Riedel/AP hide caption

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Sarah Johnson makes a call during the first half of an April 2014 preseason NFL football game between the Seattle Seahawks and the San Diego Chargers. Stephen Brashear/AP hide caption

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Sarah Thomas calls holding during a preseason game between the Oakland Raiders and New Orleans Saints in 2013. Michael Democker/The Times-Picayune/Landov hide caption

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San Francisco 49ers linebacker Chris Borland, center, during an NFL football game in Santa Clara, Calif. Borland announced that he will retire after just one season to protect himself from brain injuries. Marcio Jose Sanchez/AP hide caption

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San Francisco 49ers linebacker Chris Borland (50) is seen here in a game last year against the New York Giants. Borland, who had two interceptions in that game, has announced that he is retiring from the NFL after his rookie season. Chris Szagola/CSM/Landov hide caption

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Fans hold a "Los Angeles Rams" sign during a San Diego Chargers game against the St. Louis Rams last year. Both teams are part of proposals to build new NFL stadiums in the LA area. Donald Miralle/Getty Images hide caption

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Leland Melvin with his dogs, Jake and Scout. "I snuck them into NASA to get this picture," Melvin says. Courtesy of Leland Melvin 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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Football rules, uniforms, helmets and protective gear have changed a lot over the years. Keystone-France/Gamma-Keystone via Getty Images 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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Rafael Nadal (right) shakes hands with Tim Smyczek after winning a match at the Australian Open on Jan. 21. Rob Griffith/AP hide caption

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