In a speech ahead of the first football match at Buckingham Palace, Prince William has said:
I cannot tell you how excited I am that later today we will be playing football on my grandmother’s lawn.
One warning, though: if anyone breaks a window, you can answer to her.
As the president of the FA, William has helped organise the match as part of the Football Association's 150th anniversary celebrations.
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The president decided he wanted a military parade in Washington after he attended France’s Bastille Day last year.
The event will take place at the New York Stadium in Rotherham on Friday.
Donald Trump, meanwhile, has waded into the row over a jailed pastor that caused a crisis for the lira.