The 23-year-old midfielder has continued to make encouraging progress since collapsing at White Hart Lane earlier in the month.
And Bolton boss Owen Coyle revealed at the weekend that Muamba had been well enough to watch highlights of Bolton’s 2-1 victory over Blackburn Rovers on Sunday morning.
“From where we were last Saturday to where we are now is just a miracle,” said Spurs manager Redknapp.
“When I saw Fabrice Muamba go up the tunnel, and I spoke to my club doctor, he was gone.
“I think we all felt he wasn’t going to make the night, or even to the hospital. I think we can move on hopefully now, and he can keep improving.
“We want to play on Tuesday night, and both teams are going to want to win obviously.”
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