The Premier League has urged clubs to step up their campaigns to keep fans away from grounds.
On Saturday, hours after thousands of Liverpool fans gathered in the city’s centre to celebrate the Premier League title, top-flight officials wrote to every club.
They asked them to repeat and reinforce the message that mass gatherings should not happen.
Meanwhile, local authorities and police on Merseyside are holding meetings around arrangements for outside Anfield for Liverpool’s remaining home fixtures — but there are no plans for games to be moved.