A minute’s silence will be observed before the Europa League final between Manchester United and Ajax in Stockholm on Wednesday and both teams will wear black armbands.
The opening ceremony will also be considerably reduced as a mark of respect for the victims.
England and South Africa stood shoulder to shoulder for a minute’s silence before the first match of the one-day cricket series at Headingley.
Both teams wore black armbands as they took the field in Leeds, with all 15 members of the England squad lining up on the pitch alongside the tourists and umpires for a sombrely observed silence.
Formula 1 is expected to observe a silence ahead of this weekend’s Monaco Grand Prix.
F1’s teams, the majority of which are based in Britain, have also agreed to have #Manchester on their cars.
Jenson Button – who is replacing Fernando Alonso on the grid for the race – said: “My thoughts are with everyone who’s affected. The most heartbreaking thing is – every life is important – but it was mostly kids going to the concert.”
What about other events?
Greater Manchester Police and the city council have given the go-ahead for athletics’ Great CityGames to take place in Manchester on Friday evening.
A decision is expected on Wednesday on whether the Great Manchester Run, which features Europe’s largest 10km run and a separate half-marathon, will be held on Sunday.
Police Scotland will be reviewing its security in the coming weeks, including Saturday’s Scottish Cup final.
Premiership Rugby said there will be a minute’s silence before Saturday’s final between Exeter and Wasps at Twickenham.