Ferdinand said of his old West Ham gaffer: "Harry was my inspiration, the manager who took a chance on a gangly, slightly awkward teenager and gave me the momentum to become a Premier League and Champions League winner, and an England international.
"Harry makes you feel 10 feet tall. We went out on that pitch believing we were the greatest footballers who ever lived, whatever our ability.
"Few managers can walk into a dressing room and generate an instant feel-good factor the way he does."
Redknapp is often seen as a jovial character, but Ferdinand maintains a steely determination hides behind that colourful exterior - as the Spurs squad are currently experiencing.
"Harry has an image as this happy-go-lucky type, but believe me he is deadly serious about his football - he could not be without football," said Ferdinand, who was sold by Redknapp to Leeds in November 2000.
He was sold for a then a British transfer record of £18million which also made him the world's most expensive defender.
"He lives and breathes it. He hates players showing the slightest hint that they are taking the game for granted," added Ferdinand.
"Harry would tell me that the best way to make a success of my career was to follow Bobby Moore's example and behave like he did on and off the pitch. How could you argue with that?"