The West Ham United midfielder is believed to be on the verge of a loan switch across London to link up with the former Hammers manager.
The Rangers manager, who was once in charge at Upton Park, is expected to snap up the youngster from West Ham United next week on a 93-day loan spell which would see him stay for the play-offs if required in the Championship outfit's attempts to gain promotion.
Currently sitting third in the table behind Leicester City and Burnley in the race to reach the Premier League, Redknapp is confident Morrison can offer his side an added spark in the second half of the campaign akin to Di Canio's impact when the R's boss was with the Hammers.
"We need someone who can unlock the door," Redknapp said.
"I've always had someone in my teams who can change a game. I had Di Canio and Merson at Portsmouth. I've had someone special who can turn a game for you. Thought the other day we dominated but Ravel may be one of those lads who can do that for us. It is a gamble for us. He has got baggage or something else.
"If we didn't have a problem somewhere he wouldn't be here, he would still be playing at Manchester United. He has that talent."
Morrison has often been labelled as something of a footballing 'bad boy' after his past indiscretions growing up in a disadvantaged area of Manchester.
Sir Alex Ferguson felt it was in the midfielder's best interests to leave his Manchester United side and move down to London, where Sam Allardyce was willing to take a chance on him at West Ham.
And now Redknapp is happy to have a punt on the talented if troubled 21-year-old.
"It's the chance you take," he added. "Somewhere in life you have got to take a chance and take a gamble. Sometimes they come off and sometimes they don't.
"Maybe we do need a little bit of a maverick on the pitch. Someone who can do his own thing at time. Adel was the main reason they got promoted. Talk to Clint he was the difference and the icing on the cake that got them up. Hopefully Ravel can do the same."
image: © Will bcfc