According to multiple reports, New York Giants linebacker Keenan Robinson (concussion) has already been ruled out for Sunday's game vs. the Dallas Cowboys.
Robinson, who failed to play in a preseason game due to the injury, sustained it at some point this summer during camp.
Curently, the team has linebackers Jonathan Casillas, B.J. Goodson, Devon Kennard, J.T. Thomas, and Calvin Munson healthy for Sunday.