NFL Approves Rule Allowing Teams to Designate Emergency Third Quarterback

NFL owners approved a bylaw allowing teams to designate an emergency third quarterback who will be active on game day in case the top two quarterbacks are injured.
The emergency quarterback must be on a team's 53-man roster and can only play if the top two quarterbacks are unable to participate due to injury or ejection.
The rule change was made after the San Francisco 49ers had no available quarterbacks for most of the NFC Championship game last season.
The emergency quarterback will not count against the 46 active players allowed on game day.
If one of the injured quarterbacks is cleared to return, the emergency quarterback must leave the game but can re-enter if needed due to another injury.