Carragher made the comment at half time of Chelsea’s 6-0 loss at Manchester City on Sunday.
The Blues were 4-0 down at the time and on their way to their third successive Premier League away defeat.
The Liverpool legend said on Sky Sports on Sunday: “I called a couple of Chelsea performances a disgrace going into this game – this is as bad as anything.
“Looking at Sarri, he’s obviously only just over halfway through his first season, but the worst thing I could say is it looks like he’s turned Chelsea into Arsenal.
“That Arsenal team that used to get battered for the last seven or eight years away from home in big games because they were too weak.
“You could never say that about Chelsea, no matter what’s gone on, that they were weak.
“We are watching a really weak football team here.”
And now on Monday Night Football, Carragher has reiterated his comment and explained why he made it.
He pointed to several heavy defeats Arsenal have suffered in recent years, especially away at the likes of Liverpool, Manchester United and Chelsea themselves.
And he says Chelsea are starting to lose matches against their rivals like Arsenal did.
“Yes [I stand by it],” Carragher said.
“The reason I say that is because probably for the last five or six years when I’m watching Arsenal, they get rolled over in big games.
“There’s been an 8-2, I think at Man United, there was a 5-1 at Anfield a few years ago, there was a 6-0 against Chelsea.
“What we are seeing now from Chelsea is very similar.
“It’s not losing big games, it’s how they’re losing them.
“What I saw yesterday [Sunday], you were sort of startled.”