QPR's search for a striker has proved difficult.
"Who is going to let people go, unless you're paying crazy money?" asked Redknapp before joking about hijacking Tottenham's bid for Negredo.
"We're in the auction,' smiled Redknapp. 'One of them auctions where you make a bid but you don't actually want to buy him? I'm starting the bidding with a million. When it gets up to 15, I might even try to push Daniel (Levy) to 16. If he doesn't come back, we're in trouble! I like Negredo but we haven't got £15m, that's for sure."