The Metro leads on a call by Boris Johnson and the NHS for tens of thousands of volunteers to “sign up to the Omi army” to help deliver the accelerated Covid booster scheme. But the “record-breaking” rollout promised by the prime minister got off to a “shambolic start” the paper says, with “many” people who queued for six hours for a booster jab being turned away and the government’s website running out of Covid lateral flow tests after a change in the rules.