Kaboul is wanted by Juventus in January.
Redknapp told the Mirror: "Kaboul is playing like the player that I felt he could be when I took him to Portsmouth and then brought him back here, he’s in great form. Obviously Ledley’s been key at the back as well I think, you know, get Ledley back in. Lost Michael Dawson, who was fantastic for us, but lucky enough Ledley’s been fit. You’ve got people like Gallas waiting to play.
"It’s a good squad, you know, and it’s a good group of players. Sandro’s a fantastic player, can’t get in the team at the moment. So, you know, we’ve got Premier strength in depth."