TMZ Sports broke the story ... Donald signed with Ye's Donda Sports in late May. At the time, he said it was the company's "whole family atmosphere" that convinced him to sign with West.

Brown followed right after ... signing with DS later that month.

Donda Sports started off hot with two huge names in their respective sports. Now, the organization has zero clients on its athletic roster.

Donald released a statement on Tuesday ... saying, "The recent comments and displays of hate and antisemitism are the exact opposite of how we choose to live our lives and raise our children. We find them to be irresponsible and go against everything we believe in as a family."

He added ... "As parents and members of society, we felt a responsibility to send a clear message that hateful words and actions have consequences and that we must do better as human beings. We do not feel our beliefs, voices and actions belong anywhere near a space that misrepresents and oppresses people of any background, ethnicity or race."

Brown -- who denounced Kanye's statements on Monday, but said he would remain with Donda -- also addressed his change of heart ... saying, "In the past 24 hours, I've been able to reflect and better understand how my previous statements lack clarity in expressing my stance against recent insensitive public remarks and actions. For that, I apologize."

"And in this, I seek to be as clear as possible. I have always, and will always, continue to stand strongly against antisemitism, hate speech, misrepresentation, and oppressive rhetoric of any kind."