Brazilian side corinthians have made an improved offer for manchester city captain carlos tevez. earlier this week they failed in a £35m offer for the argentine striker and are understood to have come back with a £39m bid, BBC reported. "i do know there has been an increased offer," tevez's representative kia joorabchian told BBC Sport, "but the bid only went in on Friday and it's very early stages." city want close to £50m for tevez. they are determined not to be rushed into a deal, but were it to go ahead manager roberto mancini would then pursue his interest in atletico madrid's sergio aguero.