"The Rockets looked terrible in Game 1, but some say they weren't the only bad-looking people on the court," the blogger wrote.
Williams responded to the commentary in a Wednesday interview with "Good Morning America," telling the program that her "heart sank" when she read the article.
Williams, who recently married, said she couldn't believe that a woman would write something like that about another woman.
"Shame on you. You're a woman, you know exactly what we all go through on a daily basis," she told "GMA."