Chelsea are submitting a final £35 million bid for the Croatian, who wants to leave the club.
“If we were looking to sell him it wouldn’t meet my valuation,” he said. “I think he is worth an awful lot more money than that.
“Really, we’re not looking to sell Luka. We need to keep our best players so he is a player that we want to keep if possible. It is in the hands of the chairman of the football club [Daniel Levy]. It’s not my decision at the end of the day,” said Redknapp, distancing himself from responsibility as usual.