Redknapp says Christopher Samba and Loic Remy will be sold should they be relegated.
"I only know the players I have bought since I came here and you won't have any problem (selling them)," he said.
"If the worst came to the worst you could sell Samba or Remy. They were two buys you make where there wasn't much of a downside to them.
"The club turned down more money for Samba than we paid for him from a Russian club so you'll always get your money for him and Remy is exactly the same.
"There will always be buyers for good players. Selling bad players; overpaid, bad players is the difficulty.
"That's where you can get in trouble. There is not a market for bad ones who get too much money, that is your problem."