Redknapp spent £50million in the January transfer window and will now have to sell before making any new signings.
News of the World says Redknapp is ready to sell six of his big names in the summer transfer window.
Luka Modric, Darren Bent, David Bentley, Gareth Bale, Tom Huddlestone and Jermaine Jenas are all players Redknapp is ready to sell.
Mexican youngster Giovani dos Santos is also expected to leave Spurs at the end of the season.