The 23-times grand slam champion made her round one appearance against Poland's Magda Linette in a black tutu-style dress designed by Virgil Abloh for Nike.
Theone-shoulder dress,which is retailing to fans for $700,features a full tulle skirt,the Nike swoosh and the word"LOGO"- the all-caps wording a trademark of Abloh's own label,Off-White.
To complement the dress,Abloh also designed a jacket and shoes for Williams,who collaborated on the project.
Fans loved the new look,expressing their admiration for Williams'bold choice on social media.
Williams made her US Open debut in the tutu just days after French Tennis Federation president Bernard Giudicelli toldTennis Magazinethe French Open would be reviewing her fashion choices in the future.
“I think we sometimes went too far,” he said. “The combination of Serena this year,for example,it will no longer be accepted. You have to respect the game and the place.”