Telecom Italia (TIM) logo is seen displayed in this illustration taken, May 3, 2022. The price tag can reach 22 billion euros when including some future payments were a long-awaited combination of TIM's grid with that of state-backed fibre optic rival Open Fiber materialise, the first two sources said. Italian infrastructure fund F2i is also preparing to take a stake in the grid to bring the holding in Italian hands to 30%-35%. With its 24% TIM stake, Vivendi has warned TIM's board it is ready to bring a legal challenge to the sale after criticising its approval process, documents seen by Reuters showed. ($1 = 0.9321 euros)Reporting by Elvira Pollina; Editing by Valentina ZaOur Standards: The Thomson Reuters Trust Principles.

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Persons: Dado Ruvic, Giorgia, Pietro Labriola's, Merlyn Advisors, Stefano Siragusa, Elvira Pollina, Valentina Za Organizations: Telecom Italia, REUTERS, Vivendi, Sunday, KKR, Reuters, TIM, Treasury, Thomson Locations: MILAN, London