Former Jets coach Rex Ryan went off on Giants coach Brian Daboll on Monday.

After the Giants’ pathetic 22-9 loss to the Kansas City Chiefs Sunday night, Ryan didn’t hold back on ESPN’s “Get Up.”

“When you’re 18-35-1, you’re a great coach? No, you’re not,” Ryan said.

Daboll dropped to 0-3 on the season and has now lost 14 of his last 15 games as the team’s head coach.

Ryan also called for the Giants to bench Russell Wilson and start rookie Jaxson Dart immediately.

“I don’t want to see him in practice, put him in a damn game,” Ryan said. “You’re not going anywhere.”

Ryan and ESPN’s Dan Orlovsky also said the Giants are ruining wide receiver Malik Nabers, who finished with two catches for 13 yards.

“I’m bummed,’’ Nabers said, via The New York Post . “Anybody would feel beat up

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