Macquarie makes offer for Enel's stake in Open Fiber – sources

MILAN (Reuters) - Infrastructure fund Macquarie has made an offer for the 50% stake utility Enel holds in broadband network operator Open Fiber, two sources familiar with the matter said.Italian daily la Repubblica reported earlier on Tuesday Macquarie had made an offer for the stake that would be hard for Enel's chief executive not to submit to the utility's board.Open Fiber is jointly owned by Enel and state lender Cassa Depositi e Prestiti.