But Redknapp knows the Rs need to quickly add to their meagre tally of two league wins.
He said: "I am confident we can survive. I know it is going to be hard, and I think it will go to the wire but it is not impossible.
"It is very similar to the situation I had with Portsmouth, it is much the same if you look at the stats.
"I think that was down to the last 10 games that we got out at Pompey with 20-odd points. That is what we need here, it's not impossible."