READ MORE: Inside Strictly 2021: Covid safety measures revealed amid vaccination row A source close to the show said: "Strictly producers will be breathing a huge sigh of relief at this news, as losing a celebrity and having to replace them at the last minute would be a nightmare scenario. "They were hoping for the best, but preparing for the worst, and already had another pro waiting in the wings if the test came back positive. "There was always the option of having the celebrity skip the first live show as they wouldn’t have had much time to prepare their first dance with their partner, which would have been particularly galling". Video: Strictly Come Dancing: Meet the new pro dancers - including 26-year-old Kai Widdrington (Birmingham.