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In this Nov. 10, 2001, file photo, Toronto Maple Leafs' Wade Belak, left, fights with New Jersey Devils' Jim McKenzie during first period NHL action in Toronto. Steve Montador, Todd Ewen, Wade Belak, Rick Rypien, Bob Probert, Jeff Parker and Derek Boogaard are dead. Many of them were enforcers tasked with delivering and taking punches for teammates and all took many blows to the head. (Associated Press photo/Aaron Harris, File)

Faces of concussions: NHL’s head-on battle with an epidemic

By Associated Press May 24, 2019 | 8:50 AM