Redknapp said: "He came to training one day when he was 15. It was on the Friday morning at Chadwell Heath, we were going to Everton the next day, and he joined in a nine-a-side. His team won 3-2 and David Unsworth and the [rest of the] players said to me, 'Can't he play tomorrow?' He just wants to play football. When he was 10, 11, you couldn't get him away from a football."
Redknapp added: "I used to say to Joe, 'How did you learn to control a ball so well?'
"When he was 11 he did things with a ball I've never seen in my life. He said, 'I dribble a ball to school every day.'"