Pivotal: N'Golo Kante
Leicester bid farewell to Kante earlier this summer after the French international chose to seek pastures new, joining Antonio Conte's Italian revolution at Stamford Bridge.
Kante, who was nominated for PFA Player of the Year and including in the PFA's Team of the Year, was lauded for his impressive engine in midfield, often dubbed to be the equivalent of having two central midfielders instead of one.
France's N'Golo Kante in action with Albania's Ledian Memushaj at Euro 2016
And despite being perhaps overshadowed by the headline writers of Jamie Vardy and Riyad Mahrez, Gary Lineker believes Kante's importance to Leicester's success was irreplaceable.
"Kante allowed Ranieri to play the system he did," Lineker said.
"He can't do that anymore. Kante was the most unsung of the big three players, but he was probably the most important.
Foxes fan Lineker doubts Leicester can win the league again without Kante
"It was a one off [the title win].
"I never thought I would see something like that in my lifetime, Leicester winning under those circumstances - or any other club of that stature in this modern age.
"I am sure the league will be a little anti-climactic because they won't do that again but there is the Champions League to look forward to. That will be a wonderful experience for the supporters."
Jamie Vardy celebrates with Riyad Mahrez
Kante joined Chelsea for £30 million, however, fellow title winner Jamie Vardy turned down the chance to join Blues rivals Arsenal back in June for a fee of £20 million, signing a new contract instead.
The third element to Leicester's trio of title stars Riyad Mahrez remains a Foxes player, but rumours persist about whether he too will follow Kante out the back door.