Spike Lee promotes Colin Kaepernick rally at NFL Headquarters

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NEW YORK -- Civil Rights groups have planned a rally in support of Colin Kaepernick.

Filmmaker Spike Lee tweeted his support for the quarterback despite having his name spelled incorrectly on the poster.

"I did not organize and set up this protest," Lee said in a tweet. "However, I still support my brother and his stance on the injustices in the USA."

Kaepernick received lots of media attention last season for his political stance.

The quarterback knelt during the National Anthem in protest of police brutality and social injustice against minorities in the U.S.

Since leaving the San Francisco 49ers in March, Kaepernick has not been signed to a team, and many of his supporters believe the NFL is blacklisting him for his social activism.

The rally for Kaepernick is set to take place Aug. 23 outside the NFL headquarters in New York.