Tottenham manager Redknapp says that the former Blackburn star's attitude in training has left him unimpressed over the past week.
Bentley was left out of the squad for Saturday's defeat against Wolves although Redknapp says the player can still force his way back into the squad for Wednesday night's home game against Manchester City.
High times: Bentley has been a comparative flop since his big money move from Blackburn Rovers
'I left him out because he didn't train well last week to be honest. Normally he does becaus he's a good player in my opinion and a good pro but last week he wasn't at his best and I decided not to put him on bench.
'That's not to say he won't be on the bench or in the team next time. I just decided that I felt that he didn't deserve it this particular time. But there's no problem between him and me at the time. He's a very good player and there's nothing to say he can't get back into the team. Technically he's a fantastic player.
'It's difficult for him. Aaron [Lennon] has been in great form so he's been unable to get in the team, but it's up to him to work hard and get in the team or attract someone who wants to put them in their team.'
Unhappy Harry: But Redknapp doesn't make a habit of shouting at his players
Redknapp says he hates losing his temper with players even when they are not putting in their maximum effort.
The Tottenham boss said: 'It's not good shouting and screaming at players every week. It has no effect whatsoever,
'Occasionally, once or twice a year, you can have a blow out, but if you start doing it every week it makes no difference. If things are going very badly and you can't help yourself then you can let off a bit of steam and give them a bit of grief, but it only works occasionally.'
Trouble: Assou-Ekotto is subject of a police investigation
He also defended Benoit Assou-Ekotto after the defender's disagreement with a fan against Wolves on Saturday.
'It's difficult, it depends what the guy said,' added Redknapp. 'What can you do? You have to let it go over you head and get on with it. You can't retaliate in any shape or form. It's part and parcel of the game.'
Looking ahead to Wednesday night's clash with Manchester City, Redknapp denied that his counterpart Mark Hughes is under pressure.
'I've not heard that. Mark's doing a good job and the people there appreciate what he is doing. How many times have they lost this year? Once, that tells you everything.
'They have had a great run. They have drawn lots of games but one defeat is a good return and shows you just how strong they are.
'They have a strong squad with fantastic forwards. There's the lad there, Benjani, who I payed £9m for. He was a terrific player for me at Portsmouth and now you hardly see him mentioned. Roque Santa Cruz, Emmanuel Adebayor. they have an amazing strike force.'
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