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UPDATE: Lockett has returned to the game midway through the second quarter.
UPDATE: The television broadcast reports that Lockett has been cleared to return. He is currently on the sidelines with his helmet on, but not yet in the game.
Seattle Seahawks wide receiver Tyler Lockett was down on the field for around a minute after making a catch and then taking a knee to the head. He is currently being evaluated for a concussion, per Jessamyn McIntyre.