Chelsea saw their hopes of Premier League title glory dealt a major blow on Wednesday, with the Blues slumping to a shock 2-1 defeat away at Molineux.
The visitors went ahead through Ruben Loftus-Cheek but goals from Raul Jimenez and Jota gave the hosts all three points.
Chelsea have recently hit a bit of a sticky patch, with the defeat to Wolves coming off the back of a defeat to Tottenham.
Next up on Sunday is Manchester City, who have won 13 of their first 15 matches to sit at the top of the Premier League table.
And Di Canio fears Sarri could go the same way as former Chelsea bosses Conte and Mourinho if they lose.
Conte was sacked at the end of last season after the club failed to challenge for the Premier League title.
Mourinho, meanwhile, was axed in December 2015 despite steering them to the crown seven months previously.
And Di Canio said: “Chelsea? The opposite would have been better: a slow start and continuous growth.
“Now the path has almost stopped and there is an involution. For players like Hazard and Willian, it is also difficult to pass the opponent.
“There are many games in this period and the other teams do not give up anything. Sarri will have to be careful.
“On Saturday there is City and Chelsea will face them after a defeat.
“You can lose against City, but if there is another defeat, they might find themselves fifth.
“The risk is that many players feel the backlash and do not believe in the growth process.
“Many of these players are the same ones who had given up on Mourinho and Conte.
“They have no reason to give up the championship with Sarri because I see that they love him and follow him.
“However, I repeat that Sarri must clarify some points in the tactical and technical process because those up front hold the ball too much for his way of thinking about football.”
Sarri, meanwhile, hit out at his Chelsea flops for their dire Wolves display.
“I think it’s more important to talk about our attitude after the first goal,” he said.
“We were not the same team as before. So I don’t want to discuss if there was a foul on Willian or not.
“It’s not important for me. Maybe it was for the result, but not for me.
“I have to understand why the team was suddenly another team.”
Down Tin Tức 24h Online để không bỏ lỡ Tin tức mới nhất trên : Android