ESPN has announced it will not air Spike Lee's docuseries about former NFL quarterback Colin Kaepernick due to 'creative differences': 'We appreciate all the hard work and collaboration that went into this film.

The former NFL quarterback ignited a national debate in 2016 when he knelt during the national anthem to protest racism and police brutality.

“ESPN, Colin Kaepernick and Spike Lee have collectively decided to no longer proceed with this project as a result of certain creative differences,” the statement said. “Despite not reaching finality, we appreciate all the hard work and collaboration that went into this film.”