UPDATE 1-Telecom Italia confirms interest in Brazil's GVT, bid pending
August 14, 2014 at 14:45 PM EDT
SAO PAULO, Aug 14 (Reuters) - Telecom Italia SpA on Thursday confirmed its interest in acquiring Vivendi SA's Brazilian broadband unit GVT SA, challenging a surprise 6.7 billion euro ($9 billion) bid by Telefonica SA.