Redknapp will be making his eighth appearance in a management role at Soccer Aid, this time for England.
He spoke to talkSPORT about this weekend's event and his opposition, who will be managed by new Chelsea boss Mauricio Pochettino.
Asked if he was happy with the England squad, Redknapp admitted: "I've not had a good look yet, I'm not 100 per cent sure who's turning up. Is Jermaine Defoe playing?"
Darren Bent then responded: "Harry these are your former pros. You've got David James, Gary Neville, Gary Cahill, Nicky Butt, Paul Scholes, Jack Wilshere, Defoe, Jill Scott, Eni Aluko and Karen Carney."
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A delighted Redknapp replied: "What price can we get at, Andy [Townsend]? I think I want to lump on."
However, Townsend then revealed the star-studded opposition is full of international talent.
Townsend said: "They've got Ben Foster, Patrice Evra, Roberto Carlos, Francesco Totti, Nani, Gabriel Batistuta, Hernan Crespo. Then they've got Kaylyn Kyle, Heather O'Reilly, Izzy Christiansen, they've got some good players too."
Redknapp responded: "Ah, Evra is still different class that's for sure. They've got, Poch is managing it is he? Ah well, sounds likes it's going to be a tough game. I'll cancel my bet, I'm gonna ring up now and cancel that bet, or have a look later in the day I think!"
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Joining Stormzy's coaching staff with Redknapp is Chelsea Women's boss Emma Hayes, as well as David Seaman and actor Vicky McClure.
Also on the England team is YouTuber Chunkz, musicians Tom Grennan and Liam Payne and actors Danny Dyer and Tom Hiddleston.
Robbie Keane and actor Martin Compston join Pochettino on his coaching staff while Tommy Fury, Leon Edwards, comedian Lee Mack and Love Island star Kem Cetinay are playing in the World XI.
The World XI were victorious on penalties in last year's match and Redknapp will be keen to get revenge this time round.