A minute's applause is to be held at Premier League matches in tribute to former South Africa president Nelson Mandela, who died on Thursday aged 95.
Football fans in Scotland will also be asked to applaud at games, with similar plans for Football League and FA Cup second-round matches.
A minute's silence was held before the semi-final action started at the UK Snooker Championship in York on Friday afternoon.
But with Port Vale playing Salisbury on Friday night and Motherwell hosting Celtic, those were the first venues to demonstrate their appreciation with a minutes applause at both Vale Park and Fir Park respectively.
Port Vale went on to beat Salisbury 4-1 in the FA Cup whilst Motherwell were on the end of a five goal thrashing as Celtic race eight points clear at the top of the SPL.
The first weekend Premier League match is Manchester United against Newcastle (12:45 GMT), with six more Saturday games, two on Sunday, and Swansea v Hull on Monday.
The Football League has also asked its clubs to hold a minute's applause ahead of this weekend's games.
"The matches will be preceded by a minute's applause to mark the life and achievements of Nelson Mandela," said a Premier League spokesman.
Liverpool, who host West Ham, will be among the clubs paying tribute on Saturday.