Jose Mourinho was interested in securing his services for a potential world-record fee for a defender, but Maguire has now confirmed that he feels he owes the Foxes a debt of gratitude.
“Obviously going into a World Cup there was always going to be interest if we were as successful as we were," he said.
"There were always going to be players who came under interest, as that is part and parcel of the game.
“I spoke with Leicester after a bit of interest from clubs, and they reiterated that I wasn’t for sale and I respected that decision.
“They gave me an opportunity to play in the Premier League, when I had just been relegated with Hull. They gave me that opportunity and it is a club I am really enjoying my time at. I am playing week in and week out which is important to me.
“They have given me the platform to play at the World Cup so I feel I owe them and I respect that decision. Now I am looking forward to the season.”
Maguire played all 38 Premier League games for Leicester in 2017-18. He has already started all four Premier League encounters this season, too.