Tesco CEO Dave Lewis is, sanguine about Amazon entering the UK groceries market. Amazon last month announced a deal whereby Morrisons will supply groceries to its customers, finally expanding into fresh food in the UK. Asked by Marketing at the Marketing Society's annual lecture whether Amazon was a threat, Lewis batted off the suggestion. "If as a marketer you sit there fearing the idea that somebody might enter your market, you're halfway done. "Competition will make us stronger. Bring it on."