Cowboys' McClain undergoing concussion protocol
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Dallas Cowboys linebacker Rolando McClain is undergoing concussion protocol following Sunday's game against the Green Bay Packers.
After being accidentally kicked by teammate Jeff Heath, McClain briefly underwent concussion protocol during the game but returned to action.
McClain reentered protocol after battling through a past-game headache.
McClain recorded 11 tackles, but the Cowboys were defeated 28-7.