DESIGNER

Ronan Fong

PROFILE/DESCRIPTION

The N.F.L. at first said that the Dolphins team doctor and unaffiliated neurotrauma consultant who evaluated Tagovailoa had followed established protocols. But the N.F.L. Players Association initiated a joint investigation into the incident and, after Tagovailoa suffered an even bigger head hit in a game four days later and left the field on a stretcher, the union, in an unprecedented move, dismissed the unaffiliated consultant.

The episode has shined new light on the doctors tasked with caring for the players and the protocols they must follow when diagnosing potential brain injuries.