Prince William took part in a training session at Buckingham Palace while the grounds hosted its first ever football match.
The Duke of Cambridge was put through his paces in some of the Queen's Household team's training exercises.
In the historic game, Polytechnic FC beat Civil Service FC by two goals to one.
The Civil Service team presented William with two tiny tops for his son, Prince George - one red and the other white, both with "HRH 1" on the back.
Prince William booted up to train on Palace grounds while England's two oldest amateur football clubs played a historic match.
The Duke of Cambridge trained with the Queen's Household team while the game was underway.
During the day the Duke of Cambridge, president of the Football Association, donned his boots - a present from England striker Wayne Rooney and embossed with WR10 - but not for the match, instead he joined the Queen's Household team for a training session.
England's two oldest amateur football clubs are busy warming up ahead of the first ever football match at Buckingham Palace.
Civil Service FC and Polytechnic FC, both based in Chiswick West London, are due to play a competitive Southern Amateur League fixture this afternoon.
Wembley groundsmen were tasked with preparing the lawn of the famous landmark for the occasion.
Prince William has joked that anyone who smashes a window during the upcoming football match at Buckingham Palace will have to answer to his grandmother.
The famous landmark will host its first ever football match between two of England's oldest amateur clubs later today, as part of the Football Association's 150th anniversary celebrations.
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.
The Football Association is preparing to honour over 150 grassroots volunteers in recognition of their dedication to the sport at a special event at Buckingham Palace today.
The recipients were chosen for their outstanding contribution to football, including helping to develop the women's game, providing opportunities for disabled players and refereeing.
Buckingham Palace will also host its first ever football match today between two of England's oldest amateur clubs as part of the celebrations.
An 87-year-old man is being recognised as Britain’s longest-serving referee today, in a ceremony at Buckingham Palace.
Harry Hardy, from Derbyshire, will be given a medal by Prince William, who is the President of the Football Association.
The Ilkeston-born man will get the award alongside 149 others sportsmen, for his commitment to grassroots sport. 150 were selected to commemorate the 150th anniversary of the FA.