(Photo credit: Junfu Han / USA TODAY NETWORK)
Detroit Lions rookie cornerback Terrion Arnold was evaluated for a concussion after exiting Monday's fight-filled joint practice with the New York Giants, the team announced.
The first-round draft pick from Alabama exited the morning session in East Rutherford, N.J., shortly after absorbing a massive block by Giants left tackle Andrew Thomas.
Arnold, 21, was selected 24th ov