Chelsea currently sit nine points clear of the chasing pack after Tottenham and Arsenal failed to capitalise in the Blues' 1-1 draw with Liverpool on Tuesday.
A positive result this Saturday against Arsenal (12.30pm) could put the nail in the coffin of their title rivals.
But Ravanelli, who the 1995 Serie A title alongside Antonio Conte at Juventus, has no doubt where the Premier League trophy will end up at the end of the season.
Antonio Conte's Chelsea are nine points clear at the top of the table
Fabrizio Ravanelli won the Serie A alongside Antonio Conte at Juventus in 1995
"They [Chelsea] will definitely win the Premier League," Ravanelli told Sky Sports.
"I am sure because Chelsea has a fantastic team and is a fantastic club.
"But mainly I am sure because of Antonio. All of his teams have the same mentality. You see it. On the pitch they try to win every duel with their adversary.
Chelsea player ratings against Liverpool
Tue, January 31, 2017
Express Sport brings you Chelsea's player ratings from their clash with Liverpool
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Thibaut Courtois – 6.5
"I went to Cobham recently and saw the organisation at the training ground. It's the Antonio mentality.
"He watches hours of video, loves studying tactics and has this amazing ability to get his ideas onto the pitch. It is not easy to do that but he gets the best from every player."