Henry has entered the NFL's concussion protocol, Ricky Henne of the Chargers' official site reports.
In the aftermath of Sunday's win in Atlanta, Henry experienced concussion-like symptoms and will thus be subject to a five-step process in order to be cleared for action. There's little doubt that his practice participation will be impacted this week, but every head injury is its own test case, so the release of Wednesday's injury report will be one to examine closely. If he requires time to recover, veteran Antonio Gates will chew up the majority of TE snaps Sunday at Denver.