NEW YORK (AP) - The NFL will require the athletic trainer in the press box to stay in contact with on-field doctors to help determine if a player has a concussion.

The requirement, announced Wednesday, is an enhancement made to prevent confusion that occurred in the season opener, when Carolina's Cam Newton was allowed to return after getting hit in the head.

Greg Olsen (88) and Donald Hawkins (78) check the health of Cam Newton after he was pummeled by Shaquil Barrett of the Denver Broncos and Darian Stewart during the Broncos' 21-20 win. (Photo by Helen H. Richardson/The Denver Post via Getty Images)

Under the league's concussion protocol, the NFL's athletic trainer wasn't allowed to call a "medical timeout" after being contacted by personnel on the field. In Newton's case, the team physician and an unaffiliated neurotrauma consultant asked the trainer for video of the hit, but a technology glitch delayed the video.

After getting the replay and observing Newton on the sideline, the physician and neurotrauma consultant said no further evaluation of the quarterback was necessary.

Cam Newton suffered a concussion against the Atlanta Falcons earlier in the season. (Getty Images)

Under the new protocol, the trainer in the booth would be able to stay in contact with doctors on the field until receiving word that a concussion evaluation has occurred.

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