The secret lives of referees: 'Nerdy' Premier League refs have almost come to blows, party with young women on boozy trips, love a tattoo - and there's more who don't like Jurgen Klopp!

CRAIG HOPE: We wanted - indeed, want - our referees to be robots , one step removed from our being, especially in an age of VAR. Free-kick. Corner. Yellow card. Red card.