Ledley was dispossessed on the edge of the area by Matt Jansen after 68 minutes, which led to Andy Cole squeezing his shot past Neil Sullivan.
But Glenn says mistakes are a rarity from our massive defensive prospect and paid tribute to the way Ledley overcame his setback.
"Players make mistakes, he's only made probably two or three mistakes this season," said Glenn. "That is not in a game, in a season - he's been immaculate for us.
"I might add, he feels he could have done better, but look at the way he played afterwards. He didn't let that affect him and that shows the boy has got the right temperament.
"In the end he was as good as anyone in trying to retrieve the game."
Glenn Hoddle rallied behind Ledley King following the mishap that led to Blackburn's winner on Sunday.