Workers prepare a sign above the entrance to a 'Jack's' discount store in Chatteris, near Cambridge, east of England, on September 19, 2018, during the lauch of supermarket giant Tesco's latest venture, Jack's. - British supermarket giant Tesco on Wednesday launched a new discount brand, Jack's, named after Tesco founder Jack Cohen, opening the first of two stores, with up to 15 more planned for the coming year. (Photo by Daniel LEAL-OLIVAS / AFP)