Organisers of the weekend's sporting events have been left to decide whether to postpone their schedules in the wake of the death of Her Majesty the Queen.
Planet Sport looks at matches and events which have been affected by the news.
All games in the Premier League, EFL, WSL and National League this weekend have been postponed.
The weekend's Scottish football fixture card has also been postponed.
The Irish FA has also announced that all football in Northern Ireland scheduled for this weekend will not take place.
Manchester United's home Europa League match with Real Sociedad went ahead on Thursday - as did Arsenal's in Zurich - after receiving direction from the FA and UEFA, with a minute's silence held before kick-off, teams wearing black armbands and flags flying at half-mast.
West Ham and Hearts, both at home, also played their Europa Conference League matches with similar marks of respect.
However, none of the English sides held press conferences after their matches.
The final day of the St Leger Festival at Doncaster has been switched to Sunday after the British Horseracing Authority announced the cancellation of Saturday's fixtures.
The BHA said Saturday's scheduled meetings at Doncaster, Ffos Las, Lingfield, Chelmsford, Chester and Musselburgh will not go ahead, but racing will take place at Doncaster and Chepstow on Sunday.
In addition to the St Leger, the Champagne Stakes and the Park Stakes, the Doncaster Cup and the Flying Childers Stakes have been saved from Friday's cancelled fixture to form a nine-race Doncaster card.
But while Chepstow is also set to go ahead, Musselburgh's meeting on Sunday has been called off due to the Queen lying in state in Edinburgh.
Racing at Southwell and Chelmsford on Thursday evening was cut short, while Friday's meetings in Britain were also cancelled.
The England and Wales Cricket Board quickly confirmed Friday's play in the match at The Oval would not take place, but also revealed that play would resume on Saturday following Government guidance.
The Scottish Rugby Union has postponed all domestic competitive games this weekend as a mark of respect and the women's summer Test international between Scotland and Spain on Sunday is also off.
Premiership Rugby fixtures, on the other hand, will go ahead following government advice.
Following the publication of National Mourning Guidance, and consultation with Government, other sports and Rugby League stakeholders including clubs, the RFL confirmed that fixtures at all levels will go ahead this weekend.
A minute's silence will be observed before kick-off and both sets of players will be expected to wear black armbands.
Play was suspended for the day at the BMW PGA Championship with no action taking place on Friday.
However, the DP World Tour have since announced that play at the BMW PGA Championship will restart on Saturday morning.
Sunday's Italian Grand Prix will go ahead as scheduled with a minute's silence planned before practice on Friday and another expected before the race.
Women's world title fight between Savannah Marshall and Claressa Shields has been rescheduled for October 15.
Boxxer CEO Ben Shalom said: "This is an unprecedented moment in our history and our sincere thoughts are primarily with the Royal Family and the nation at this time. Out of respect, the British Boxing Board of Control has decided to postpone Saturday's show.
"A provisional date for Saturday, 15th October at The O2 is being worked on by all parties to stage this unique and historical night of celebration for women's sport at a more appropriate time."
This weekend's Great North Run will take pace as normal.
Great North Run organisers said: "The event has traditionally been a celebration of the extraordinary achievements of ordinary people.
"This year it will be a opportunity for people to come together and express condolences, while celebrating the life of our extraordinary Queen."
The sixth stage of the Tour of Britain was initially cancelled before organisers later took the decision to cancel the remaining last two stages and use Thursday's standings as final classification.