Periods of silence were held before football matches, including Fulham’s Premier League match against Wolves and England women’s friendly in France.
A two-minute silence was held at Aintree and during county cricket fixtures earlier on Friday.
Flags were flown at half-mast at a number of venues, including Wembley and all nine county cricket grounds.
There will be a minute’s silence before all Premier League matches this weekend and players will wear black armbands. All Scottish Professional Football League clubs will also observe a minute’s silence this weekend.
It’s with immense sadness that we learned of HRH The Duke of Edinburgh’s death earlier today.
— England (@England) April 9, 2021
The Duke was an honorary member of the Jockey Club and a former president of the Marylebone Cricket Club.
The Grand National will go ahead at Aintree on Saturday, with a two-minute silence to be held at the course.
The Football Association said it had sent its “deepest condolences” to the Queen and the Duke of Cambridge, the FA’s president.
Prince Philip was FA president from 1955-57, and accompanied the Queen to Wembley when England won the World Cup in 1966.