"He's going to be an important player for us in the play-offs," said Redknapp.
"Ravel's done very well for us. We've been pleased with him. He's a real talent. He's got the ability to become a top player, as long as he keeps focused.
"The ability's up there with the best in the country really, in terms of what he can do.
"He's a smashing boy. I've found him a nice kid. He's not been a minute's problem.
"Before I took him, I spoke to [manager] Lee Clark at Birmingham and he loved him when he had him last year.
"Sam [Allardyce at West Ham] liked him. I think he just felt that he'd gone down another road and he wasn't going to play so he let him come on loan and I was grateful for that.
"Hopefully he's got a great future. I'd love to see him do well."
Asked about whether Morrison could one day feature for England, Redknapp said: "You hope so, you just don't know. It's up to Ravel. He's got to make sure he keeps his eye on the job at hand."
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