The basis of the new club-country agreement is that England can only make like-for-like changes to the original elite squad, named by Johnson on 1 July, on the grounds of injury or suspension.
Crowd estimates are down from an original prediction from District of Columbia officials that as many as 4 million people would crowd the Capitol grounds and the National Mall to see the event.
The tranquility of the palace grounds are a great contrast to much of the rest of the city -- not far away original parts of old Seoul's city walls can still be seen in mountains to the north.