Alize Cornet welcomed the US Open’s apology for her clothing warning – then criticised the president of the French Tennis Federation for banning Serena Williams’ catsuit.A media storm erupted after the French player was given a warning for quickly changing her top on court on Tuesday after realising she had put it on back to front.The decision was branded sexist given male players regularly change shirts on court, and US Open organisers responded with a statement on Wednesday admitting Cornet should not have received any sanction.The statement read: “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.”Cornet was shocked by how much attention the incident has received and accepted it as simply a mistake by the umpire.She said: “I think just the umpire was probably overwhelmed by the situation. We were all very hot. Of course, I was surprised when I just changed T-shirt really quick and he gave me the code violation, I didn’t expect it, and I told him it was pretty weird.“I think it’s very fair from them to apologise to me. I really appreciate it. When I woke up this morning, I didn’t think that this code violation would become so famous in less than 24 hours, and I’m very surprised about it.”

The likes of Judy Murray and Billie Jean King took to Twitter to condemn the warning, and Cornet received a huge amount of support from her fellow players.

She said: “Everybody was pretty scared that I could get a fine for it. I was also scared. They were telling me that if I get fined, we would all be together and see the WTA and make a revolution and stuff. I was, like, ‘Calm down. I’m going to get the information first and then we see if we make a revolution or not’.”

The WTA welcomed the US Open response, saying in its own statement: “The code violation that USTA (United States Tennis Association) handed to Alize Cornet during her first-round match at the US Open was unfair and it was not based on a WTA rule.

“The WTA has always been and always will be a pioneer for women and women’s sports. This code violation came under the Grand Slam rules and we are pleased to see the USTA has now changed this policy. Alize did nothing wrong.”

While Cornet was happy to accept the warning as merely an error, she was far less charitable towards French federation president Bernard Giudicelli, who caused a stir on the eve of the tournament by saying the catsuit Williams wore at the French Open this year would no longer be deemed acceptable because players have to “respect the game”.

Cornet, the French number two, said: “We still have some people, like the president of my federation that lives in another time and can still do these kind of comments. They are totally shocking.

“What Bernard Giudicelli said about Serena’s catsuit was 10,000 times worse than what happened to me on the court yesterday, because he’s the president of French Federation and because he doesn’t have to do that.

“This kind of person doesn’t have the work that we are all doing to make it more fair for women.”

Cornet echoed the thoughts of former world number one Victoria Azarenka, who believes women and men are still judged by different standards and wants the WTA to be at the forefront of fighting such attitudes.

Azarenka said: “I’ve no idea what it means disrespecting the game playing in the catsuit.

“There is always a double standard for men and women. As players, as representatives of the WTA Tour, I believe we’re going to do the best we can to make sure that we are the most progressive sport and continue to break those boundaries, because it’s unacceptable.”