FS1’s controversial subway advertisements about the Knicks will be removed, multiple sources confirmed to The Post.

The ads asked fans to “pick a side” in a debate between the franchise being “hopeful” and “hopeless.”

The side of a 42nd Street shuttle car, featuring photos of Tim Hardaway, Jr. and Joakim Noah and the word “HOPELESS” in large type, circulated Tuesday on social media. Seats displayed phrases like, “Sit here if you blame Melo” and “Sit here if you blame Phil.”

The “HOPEFUL” side of the campaign included an inside wall with a photo of Kristaps Porzingis and the phrase, “Kristaps Porzingis is a unicorn sent back in time to show us how basketball will be played in the future.” The negative half of the campaign drew far more attention than the positive side.

“Today, FS1 featured statements on a New York City subway car intended to reflect the distinct emotions and opionions of passionate sports fans, “ the company said in a statement. “We regret the tone and are removing the content in its entirety.”

Fox Sports purchased the ads, which were originally intended to run for four weeks, according to an MTA spokesman.

The Knicks have missed the playoffs for four straight seasons. Phil Jackson is out as team president, and the new regime traded star Carmelo Anthony to the Thunder. Only two teams have longer odds than the Knicks, who are at 500-1, to win the NBA title, according to VegasInsider.com.

The Knicks open preseason Tuesday night against the Nets at The Garden.