Cape Town - Former Leicester City defender Patrick Kisnorbo believes the Foxes' achievement of winning the title this season will never be forgotten.
In one of the most remarkable sporting fairytales, Leicester have gone from relegation candidates to English Premier League Champions in less than 12 months after their title rivals Tottenham Hotspur slipped up at Chelsea in a 2-2 draw at Stamford Bridge on Monday night.
The Australian, who played for the club between 2005 and 2009, was lost for words when trying to describe their achievement - not only to win the league but the fact that they will be competing with Europe's elite in the Champions league group stages next season.
"It's unheard of. Three years ago, they were playing in the Championship and last season they were almost relegated. Now they have won the Premier League," the ex-Australia international told Omnisport.
"It's sporting history. A lot of teams and a lot of codes are using this story as inspiration and motivation. It just proves anything is possible.
"There is a special group of boys at Leicester that are embracing every moment because it may never come again. They need to enjoy it because next year there will be pressure as title holders," he added.
"They are going to be playing Champions League football. Another thing we never thought would happen.
"There are so many things that you can say but it really is a fairytale. A moment in football history that will never be forgotten."
Kisnorbo also reserved special praise for one of his former teammates and academy graduate Andy King who helped the Foxes rise through the divisions, first as League One champions, then winning the Championship and now he'll be in the starting XI at the King Power Stadium when Renieri's men lift the trophy.
"He's been at the club since Under 10s. He has seen the transformation of the club more than anyone else. It's a great success story. He must be over the moon.
"He will get his chance to play and fittingly this week with [Danny] Drinkwater suspended. In front of the home fans and lifting up the club, it's a special moment. It's a moment everyone in football wished they were part of."