Colin Kaepernick was heckled Wednesday night outside Madison Square Garden, where he joined Spike Lee for a New York Knicks game against the Memphis Grizzlies.

Kaepernick and Lee were exiting the arena and entering an SUV when the former 49ers quarterback was confronted with questions and a jeer.

"Get outta here," a person could be heard yelling in the background.

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"You’re a bum. Could never throw a football," the person added.

Colin Kaepernick

Colin Kaepernick arrives for a workout for NFL football scouts and media in Riverdale, Ga., Nov. 16, 2019. ESPN Films announced Tuesday, Feb. 1, 2022, that Spike Lee will direct a multi-part documentary for ESPN on Kaepernick that features extensive interviews with the former San Francisco 49ers quarterback and access to his personal archive. (AP Photo/Todd Kirkland, File)

Lee will direct a multi-part documentary on Kaepernick for ESPN, which will have extensive interviews with the former NFL quarterback. No title or release date has been announced.

Kaepernick played for the 49ers from 2011 to 2016. He replaced an injured Alex Smith in 2012 and led the 49ers to a 5-2 record down the stretch. The season culminated in an NFC Championship and a Super Bowl appearance.

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Spike Lee and Colin Kaepernick

Director Spike Lee and Colin Kapernick sit courtside Feb. 2, 2022, at Madison Square Garden in New York City. (Rich Graessle/Getty Images)

The team was narrowly defeated by the Baltimore Ravens in the 2013 Super Bowl, 34-31. Kaepernick got the Niners back to the conference title game the following season but lost to the Seattle Seahawks.

In 2016, Kaepernick set off a firestorm in the NFL when he decided to kneel during the national anthem in protest of racial discrimination and social injustice. He and the 49ers parted ways after that season.

Kaepernick has maintained he’s been staying ready for when an NFL team decides to take a chance on him.

Spike Lee and Colin Kaepernick

American film director Spike Lee and American activist Colin Kaepernick pose with the NBA 75th anniversary ball Feb. 2, 2022, at Madison Square Garden in New York City. (Nathaniel S. Butler/NBAE via Getty Images)

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While he’s been on the free-agent market, the quarterback founded the Know Your Rights Camp to teach underprivileged youth about empowerment and their rights. He’s also created a publishing company. However, he’s been embroiled in controversy with his support for abolishing the police and prisons.

The Associated Press contributed to this article.