Jamie joined us from Liverpool in April 2002 and made 49 appearances for us in an injury-hit spell before joining his father Harry at Southamton in the January transfer window.
Named captain before the start of the 2003-04 season, Jamie, the ultimate professional, made a huge impression on all at the Lane.
That was certainly the case for Simon during the Welsh international's difficult period with various injuries and illness from September 2003 until a recent return to full fitness.
"Jamie was a great bloke," said Simon. "Everyone knew that but he had an experience of what it was like to be injured and he was someone I could always go and talk to when I was injured.
"He knew what it was like when you are feeling low because you are injured, talked about how to cope with it and was really helpful.
"When I had my hip problem and he was coming back from a knee injury we were training in the gym together every day and he would say 'you'll be back' and you look at him and his injury problems, the character he's shown to come back and it drives you on. Not that many players have managed to overcome what he has.
"For someone who got to such a great level at Liverpool and then have his career halted by injuries - it doesn't get much harder for a professional footballer than that. He battled through it, is still playing in the Premier League and playing well, so he's definitely someone to look up to.
"You don't play at Liverpool for 10 years, captain them and play for England without that quality. I'm sure he would have gone even further without the injuries but he's still a class act."
Simon expects Jamie to be right up for at St Mary's on Saturday - up against his former club with the Saints fighting for survival.
"I remember Jamie against Arsenal last season," added Simon. "He and Browny got hold of them in midfield, Jamie scored and it was one of his best game for us.
"That's what he'll look to do on Saturday. I'm sure he'll be desperate to play against us and it will be good to see him again."
Simon Davies has spoken of the great influence Jamie Redknapp had on him during his time at Spurs - not least when he was injured and feeling low.