https://www.reuters.com/article/rci-chairman-stock/rogers-shares-slide-as-battle-for-control-of-board-deepens-idUSKBN2HF1IF >TORONTO (Reuters) -Shares in Rogers Communications Inc tumbled more than 6% on Monday as a family feud over the control of the board deepened after rival factions claimed they were in charge of one of Canada's largest telecom companies.