Bentley (right) arrived at White Hart Lane for £15million last summer but the former Blackburn midfielder has not played since a 1-1 draw against Sunderland at the start of March.
Aaron Lennon and Luka Modric are ahead of Bentley in the pecking order and Redknapp said: 'It has been tough for David. He has worked hard but Aaron has been in terrific form.
'David wants to play. He is a terrific talent but Aaron and Luka Modric have been in superb form.'
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