"I think the French tennis president needs to have respect for women's bodies and accept that they come in a multitude of shapes, sizes, and colors", said another.
"There's still several matches to play before you're there", said Williams about a possible meeting with her sister.
Proof that the power of a good outfit knows no boundaries, the 36-year-old was victorious in her first round, defeating Poland's Magda Linette 6-4 6-0.
Tennis great Serena Williams won her first-round U.S. Open match on Monday, August 27, and did so in grand fashion.
The crowd noise swelled again when Williams successfully challenged a line call and again when she secured the only service break she needed in the first set.
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Serena Williams's daughter Alexis Olympia is marking a big milestone this weekend - she's turning one! "It is one of those feelings I only get here in NY".
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First, there was controversy over the black Nike catsuit Williams wore at Roland Garros, which prompted officials to introduce a dress code for the first time in Paris next year.
The tennis ace served up the best reprisal by taking to the court in a custom-made Off-White X Nike tutu.
When it comes to tennis fashion, you can count on champion Serena Williams to make a statement on the court with her eye-catching, unique outfits.
Bumped up to 17th seed from her world ranking of 26 because of her pedigree and record, Williams looked relaxed, fitter than recently and ready to contend. Whatsoever, we are loving how Serena rocked in that tutu outfit.
The brunette beauty has been a Jehovah Witness since her mother Oracene converted to the religion in the 80s but she's only just got more "into it".
Williams herself has said she's not too bothered by the catsuit ban, because "obviously, the Grand Slams have a right to do what they want to do", she said at a press conference at the US Open on Saturday.
"I think that everybody is fair to do whatever works better for the tournament", Nadal said on Tuesday (AEST) after winning his opening match on Arthur Ashe Stadium, before invoking the all-white clothing policy that has always been enforced at Wimbledon.