Foxborough

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NFL Commissioner Roger Goodell and New England Patriots owner Robert Kraft, left, address members of the media during a football safety clinic for mothers, Thursday, May 29, 2014, at the team's facilities in Foxborough, Mass. (AP Photo/Stephan Savoia)

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NFL Commissioner Roger Goodell, foreground, and New England Patriots owner Robert Kraft walk onto the field as they arrive at a football safety clinic for mothers, Thursday, May 29, 2014 at the team's facilities in Foxborough, Mass. (AP Photo/Stephan Savoia)

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New England Patriots owner Robert Kraft, right, introduces NFL Commissioner Roger Goodell at a football safety clinic for mothers, Thursday, May 29, 2014 at the team's facilities in Foxborough, Mass. (AP Photo/Stephan Savoia)

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NFL Commissioner Roger Goodell and New England Patriots owner Robert Kraft, left, address members of the media during a football safety clinic for mothers, Thursday, May 29, 2014 at the team's facilities in Foxborough, Mass. (AP Photo/Stephan Savoia)