The France international established himself as the Premier League’s leading holding midfielder over the past three seasons.
Kante was a key part of the Leicester City team that won an unprecedented Premier League title in 2015-16.
The 27-year-old completed a move to Chelsea FC in 2016 before he helped to transform Antonio Conte’s men into title winners.
While a lot of the Blues squad struggled last term, Kante still excelled and got his hands on the FA Cup trophy.
However, Sarri’s appointment has triggered a positional change for Kante after the Blues signed Jorginho in a £57m deal from Serie A side Napoli in the summer.
The Italian head coach has started Jorginho in a holding role and Kante has been used further up the pitch.
However, Chelsea FC’s midfield was exposed in a 3-1 loss to Tottenham Hotspur at Wembley on Saturday evening.
Former Liverpool FC defender Carragher believes Sarri needs to rethink his Chelsea FC midfield.
“Well number one: Jorginho is not moving from that position. He’s Sarri’s man, he’s built his team around him,” Carragher told Sky Sports’ Monday Night Football.
“Kante is not moving because he’s signed a massive contract.
“What I would say is Jorginho has been excellent this season. Teams are having to change their system and style to counter-act Jorginho. So that shows how important he is and how good he has been.
“So if he’s getting man-marked, as he was, by Dele Alli, [Gylfi] Sigurdsson, Juan Mata, that means there should be space for other players.
“This is Chelsea. They have big players. The space was in the wide areas [against Spurs], so we want to see more from Eden Hazard, Willian, the full-backs.”
Carragher added that Kante doesn’t look like a world-class player when the France star is used in a more attacking midfield role.
“The one thing about Kante is he is a very average player in this [advanced] position he’s playing now.” Carragher added. “I see a normal midfielder player.
“When he plays deeper, I see a world class midfield player.
“What do you do? For me, I don’t think this balance ever looks right. I think it’s quite simple – whether or not Sarri is stuck on this 4-3-3 all the time. Play them as a midfield two and play Barkley, or Willian in front in more of a 4-2-3-1.”
Kante signed a new long-term deal with Chelsea FC last week to secure his future at Stamford Bridge until 2023.
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