San Francisco 49ers quarterback Colin Kaepernick’s birth mother had some harsh words for her son on Twitter.

“There’s ways to make change w/o disrespecting & bringing shame to the very country & family who afforded you so many blessings,” Heidi Russo tweeted at Kaepernick after he decided to sit out the national anthem this past weekend. (RELATED: Millionaire NFL Quarterback Has Mind-Boggling Reason For Refusal To Stand For National Anthem)

@Kaepernick7 There’s ways to make change w/o disrespecting & bringing shame to the very country & family who afforded you so many blessings. — Heidi Russo (@Heidirn1) August 27, 2016

Kaepernick chose to sit on the bench during a preseason game against the Green Bay Packers, and was instantly lambasted by people across America. (RELATED: Hookstead’s Hot Take: America Stood Up For Colin Kaepernick, He Should Stand For The Flag)

Russo gave up Kaepernick for adoption when he was born, according to Terez Owens.

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