A photograph of the prime minister mid-workout dominates the Mail on Sunday’s front page. Boris Johnson has given an interview to the paper, which reports he is promising a “building blitz” of hospitals, schools, homes and infrastructure projects to “save the British economy from disaster”. The paper says details of the plan, which will cost tens of billions of pounds, will be announced on Tuesday. “If Covid was a lightning flash, we’re about to have the thunderclap,” the PM tells the paper.