Since 2012, AT Spotters have served as another set of eyes, watching for potential injuries from inside a stadium booth high above the field.

Beginning in the 2017 season, the NFL mandated medical tents on every sideline at every stadium. They're used for concussion testing or for quick medical work that does not require a trip to the locker room. (AP Photo/Michael Ainsworth, File)
The AT spotter’s primary role is to observe play on the field and monitor the broadcast feed of that game to identify players who may potentially be injured on a play, with an emphasis on concussions and other head and neck injuries.
Using the injury video review system’s monitor and recording equipment to monitor, the AT spotter watches and reviews network footage of the game. If the AT spotter observes a play that may have resulted in a concussion or injury on the field, he or she will call that team’s bench area to speak with a credentialed team physician or the head athletic trainer to relay the details of the potential injury he or she observed. The spotter will confirm the player’s jersey number and the situation in which the injury may have occurred.
The AT spotter must speak directly to the team physician, unaffiliated neurotrauma consultant, or head athletic trainer when reviewing a potential injury. They cannot relay the information to other team staff assigned to answer the bench phones.

The Eyes in the Sky
Today these “eyes in the sky” consist of a five-person crew: two AT spotters, two video technicians, and starting in the 2018 season, an Unaffiliated Neurotrauma Consultant (UNC). Each team member helps to track the on-field action and catch potential injuries as they happen.
The AT spotter does not diagnose any injuries or suggest treatment, but simply alerts the team’s medical personnel to a potential injury and describes how the injury happened when possible.
The injury video review system uses NFL Vision technology and the broadcast feed to allow the AT spotter to watch the feed and the play on the field. From high above the field, the spotter, with help from an injury video technician, looks for potential injuries, with a special focus on concussions and other head and neck issues. When the spotter spots a potential problem — either in real time or after reviewing replays — he or she tells the technician to tag and label the video.
When immediate action is required, the spotter can call the bench to speak with the team physician or head athletic trainer and provide details of a potential injury. The spotter can send the video via fiber optic cable to a sideline monitor where the physician, athletic trainer, or Unaffiliated Neurotrauma Consultant can see the play. The medical staff, assisted by an on-field injury video technician, can ask for slow motion, specific angles, rewind and more.

An NFL employee sets up a video review system used to help spot injuries on the field during NFL games. In 2015, the NFL gave AT spotters in the press box the power to call a medical timeout. (AP Photo/Seth Wenig)
Beginning in 2015, AT spotters may use a medical timeout to stop the game to remove a player from the field for medical examination. The spotter can only stop play withclear visual evidenceof two very specific criteria:
If a situation meets these narrowly defined circumstances, the AT spotter will take the following steps:
The designated game official will immediately stop the game, go to the player in question and wait for the team’s medical personnel to arrive and ensure that the player is attended to and escorted off the field.
The game and play clock will stop (if running) and remain off until the player is removed from the game. Both clocks will start again unless the play clock was stopped inside 10 seconds, in which case it will be reset to 10 seconds.
The player’s team will have an opportunity to replace him with a substitute, and the opponent will be able to match up as necessary. No member of the team’s coaching staff may go on to the playing field, and no other players may go to the sideline unless he will be replaced by a substitute.
Once the player is removed from the field, the team medical staff will conduct an evaluation of him as required by the governing protocols before making any decision regarding the player’s eligibility to return to play. The medical staff will make the return-to-play decision consistent with the league's protocols.
Player evaluations must last at least one play, unless the team decides to take a timeout, the period ends, the two-minute warning occurs or the injury was due to a foul by an opponent. An injury timeout will not be charged to a team that has a player removed during this process.
All AT spotters are retained and assigned by the NFL and must meet the following criteria:
Any deliberate attempt by a team to stop play unnecessarily; to prolong or delay the process; to improperly take advantage of a stoppage in play; or to influence the actions of the AT spotter will be considered an “unfair act” and subject to appropriate discipline and to any penalty assessed by the game officials.
In the event the AT spotter cannot communicate with the designated game official, then the AT spotter will radio the league’s field communicator (“teal shirt”), who will relay the team and player’s number to the nearest on-field game official.

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