Oct 31 (Reuters) - Coca-Cola Co (KO.N) is buying full control of BodyArmor for $5.6 billion in a deal that values the sports drink brand at about $8 billion, the Wall Street Journal reported on Sunday, citing people familiar with the matter. Coca-Cola, which already owns 30% of BodyArmor, is buying the remaining 70% from the company’s founders and investors, according to the WSJ report. The deal is expected to be announced as soon as Monday, it added.