UPDATE 1-Vivendi's CEO to talk to markets regulator about Mediaset on Friday -sources

PARIS/MILAN, Dec 21 (Reuters) - Vivendi's Chief

Executive Arnaud de Puyfontaine will meet Italian financial

markets regulator Consob in Rome on Friday following complaints

over the French media group's stakebuilding in TV broadcaster

Mediaset, said two sources close to the matter.

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