Club captain Jamie was delighted with Ledley's performance in the Euro 2004 opener against France on Sunday.
Ledley didn't put a foot wrong against the likes of Thierry Henry and David Trezeguet as France produced the late, late show to turn a 1-0 deficit into a 2-1 in injury time.
But John Terry is now fit again after a hamstring problem and coach Eriksson wouldn't be drawn on his defensive dilemma yesterday, just saying: "It is good to have these problems."
"Ledley was different class," said Jamie, a pundit in Portugal with the BBC. "People were questioning him before the game not because of his ability but because he hadn't played at the back for most of last season.
"Even before the game I was doing a bit of TV and everyone was asking me how he would get on because I know him well from Tottenham.
"I was really hyping him up so I was delighted he did so well because I'd almost put him under more pressure!
"He held Henry no problems, made tackles, made blocks and it was a massive achievment for him
"He was excellent and I think he's got to play against Switzerland now. I don't think too many people will disagree with that."
Jamie added that you would see more of Ledley's football side the more he plays and gains confidence.
He said: "We all know he wants to play at the back and that's best for him but he did a job in midfield for us last season because of injuries and played well anyway.
"Playing in midfield makes you think. When you are in midfield there are players around you so quickly and you have to move your feet and I don't think he really showed his footballing ability against France. It was just his defensive side and when he gets that confidence you'll see him on ball, coming out of defence.
"I don't see any problems for Ledley at all and playing so well in that game will have done him the world of good.
"I've got a lot of time for Ledley. He's a really good player, a good lad and to go into that game with all the pressure and expactations on him, he handled himself brilliantly."
Jamie Redknapp has urged Sven Goran Eriksson to stick with Ledley King for England's vital clash against Switzerland on Thursday.