A post shared by Simone Biles (@simonebiles)
She later apologized – twice — and the YouTube post has since been deleted.
In it, she criticized Team USA's work ethic — and the talent pool behind Biles.
"Besides Simone, I feel like the talent and the depth just isn't like what it used to be," Skinner said. "Just notice like, I mean, obviously a lot of girls don't work as hard."
"The girls just don't have the work ethic," Skinner added. "And it's hard too because of SafeSport. Like, coaches can't get on athletes and they have to be really careful what they say. Which, in some ways is really good, but at the same time, to get to where you need to be in gymnastics you do have to be, I feel like, a little aggressive and a little intense."
Biles initially seemingly responded with a post on X along the lines of, "not everyone needs a mic."
Skinner was a silver vault medalist in Tokyo, stepping in for Biles. Her rep didn't immediately respond to a request from Wednesday, but she did post some red heart emojis in an Instagram Story video on Team USA's win.
Later, a thinly-veiled post on X from Biles generated attention on social media, where surmised it was Skinner.