After sparking sexism debate for giving Alize Cornet a code violation because the Frenchwoman temporarily took her Lotto Barre Top off during her first-round defeat against Sweden’s Johanna Larsson, the US Open apologized and changed their attire policy, which now reads:
All players can change their shirts when sitting in the player chair. This is not considered a Code Violation.
We regret that a Code Violation was assessed to Ms. Cornet yesterday. We have clarified the policy to ensure this will not happen moving forward. Fortunately, she was only assessed a warning with no further penalty or fine.
Female players, if they choose, may also change their shirts in a more private location close to the court, when available. They will not be assessed a bathroom break in this circumstance.
— doublefault28 (@doublefault28) August 28, 2018
What happened was that Cornet returned from her 10-minute heat break with the front of her fresh shirt facing backwards. When the world No.31 realized that, she quickly took it off to rotate it, exposing her sports bra for a few seconds. The US Open officials considered it unsportsmanlike conduct and gave her a code violation. The WTA community voiced their frustration with double standards.