New Concussion Guidelines Urge Medical Attention

"The message we're sending is that any time a concussion is suspected, even if you're not sure, you should sit that player out until there has been an evaluation by a medical provider with concussion expertise," said the guidelines' lead author, Dr. Christopher Giza, an associate professor of pediatric neurology and neurosurgery at the David Geffen School of Medicine and the Mattel Children's Hospital at the University of California, Los Angeles.

"We say:  'If in doubt, sit them out'."