Brighton’s friendly against Chelsea was the first meeting between two Premier League sides in front of a paying audience for almost six months“You can hold things up against yourself,” the assistant at the door of the Seagulls Store said, politely but firmly, “just don’t try anything on.”Welcome to the Covid-secure live football experience, and one of many new rules that fans will need to get used to if pilots with paying spectators lead, as everyone hopes, to a steady return of crowds at football and other sports from 1 October. Related: Covid-19's impact on football: 'It could take 10 years to get where we were' Related: Lava touches and t...