FOXBOROUGH, Mass. -- New England Patriots safety Patrick Chung left Sunday's loss to the Jacksonville Jaguars at halftime with a concussion, and a league spokesman said a joint review by the NFL and NFL Players Association is underway to ensure the proper protocol was followed.
Chung initially left the game after defending a running play with 12:54 remaining in the second quarter, as he had charged toward ball-carrier Corey Grant on a 1-yard run. Chung was met in the hole by tight end Niles Paul, and after Paul landed on top of him, Chung briefly lay prone on the ground with his hands near the opening of his helmet as umpire Barry Anderson waved his arms to signal a stoppage in play.