Giants' Corey Ballentine placed in concussion protocol after complaining of persistent headachesRookie had previously played in all six games this season10/16/2019, 6:08 PMAug 16, 2019; East Rutherford, NJ, USA; Chicago Bears wide receiver Javon Wims (83) catches a pass as New York Giants defensive back Corey Ballentine (25) tackles during the first half at MetLife Stadium. Mandatory Credit: Vincent Carchietta-USA TODAY Sports / Vincent Carchietta