The whistle has been blown
This artwork uses the 'whistle has been blown as a metaphor'. This is a message to everyone in the idea of football, if the whistle has been blown, then play must stop maybe for halftime or end of a game but everyone stops. That is the idea that we should all stop and take the current crisis seriously, stay home or work from home so that we can take a little time out to save lives and continue later when the situation permits.