The league and the players' association reviewed the events after Miami quarterback Matt Moore was drilled by Bud Dupree in the second quarter, with the Pittsburgh Steelers linebacker drawing a roughing the passer penalty.
Moore remained on the field for several moments before retreating to the sideline for one play, prompting the NFL and the NFLPA to open an investigation on the Dolphins.
The NFL noted in its statement Wednesday that while the Dolphins' team doctor took the appropriate steps to involve the Unaffiliated Neuro-trauma Consultant, Miami did not recognize that Moore was bleeding from the mouth and required further evaluation in the locker room.
"The Miami Dolphins were notified in a letter co-signed by Dr. Hunt Batjer, Co-Chair of the NFL Head, Neck & Spine Committee and Dr. Thom Mayer, Medical Director for the NFLPA, that the NFL-NFLPA review determined that the Protocol was not strictly followed," the NFL said in a statement. "The letter further advised the Dolphins that they must engage their staff in a full review of the Protocol and conduct additional education, if necessary. The Dolphins were also advised that any future deviation from the Protocol may result in enhanced discipline, including monetary fines assessed against the Club."
Dupree was fined $18,231 by the NFL for the hit.