Why Did The Penguins Let Brooks Orpik Keep Playing After This Hit?

One cannot easily diagnose traumatic brain injury by way of a television feed—some big hits can be harmless, and some small ones can pack an unexpected punch. But, watching on TV last night, it was hard to think Penguins defenseman Brooks Orpik, whose head was rammed into the glass by 228-pound Bruin Milan Lucic… » 6/06/13 3:09pm 6/06/13 3:09pm