The Premier League discovered the size of the task persuading police to allow football to restart at all 20 stadiums on Wednesday, as Greater Manchester's chief constable said he was against a return and identified Manchester City v Liverpool as a risky fixture.
GMP chief Ian Hopkins said the force was 'fearful' that fans would turn up at games, whether they were staged at neutral or home grounds, and that if necessary the force could take legal action to prevent that.
Hopkins said: 'What we are fearful of is that people will turn up either at neutral grounds or at home grounds and that could be particularly problematic.