New mom Serena Williams just penned a powerful letter to her own mother -- thanking Oracene Price for showing her how to be a strong, black woman in a world filled with ignorance and hate.
"I'm not sure how you did not go off on every single reporter, person, announcer and quite frankly, hater, who was too ignorant to understand the power of a black woman," Williams wrote.
"Thank you for being the role model I needed to endure all the hardships that I now regard as a challenges -- ones that I enjoy.