Two major sports stars speaking out on concussions this week shows how serious they’ve become.

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Two major sports stars speaking out on concussions this week shows how serious they’ve become.
May 3, 2011
Perry Lefko, sportsnet.ca

Two years ago it was hockey star Keith Primeau.

On Tuesday, it was football star Matt Dunigan.

Both are high-profile athletes who have decided to donate their brains to science after their deaths to help study the effects of concussions, which ended their respective careers.

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