Jade Defoe, 26, fell into a coma following a street attack in Leytonstone, east London, and died last Friday. A man has been remanded in custody over the attack.
The Tottenham star left training early last Friday to be at his hospital bedside and missed the 5-2 loss to Manchester United at the weekend. But Redknapp has revealed that the England player has been back in training this week.
Shock: Jermain Defoe (left) could return for Tottenham
He said: 'Jermain is okay. He has been coming into training with the other lads. It stops him sitting around at home thinking about it.
'He has got to be part of things again. He has looked very sharp and bright in training.'
Defoe is available for selection for Saturday's home match against rock bottom West Bromwich Albion. And Redknapp has warned he does not expect to have an easy time of it against the Baggies.
Pointing the way: Harry Redknapp wants three points against West Bromwich
He said: 'They are a good team and play some fantastic football. Tony Mowbray has stuck with his belief to play passing football. There have been a couple of matches where they have played some great football.
'They keep the ball and make it very hard for you. It is going to be a hard game but, that said, we are in unbelievable form, especially at home.'
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