And then, suddenly, after unleashing one powerful backhand return victor that she punctuated with a shout, Williams was back.
"I feel like a superhero when I wear it", she added.
Her next opponent may well be a familiar face, with Williams hoping to come through a testing third-round match with Germany's Julia Goerges later on Saturday.
The 31-year-old Russian, seeded 28th after missing this tournament the last two years, needed 59 minutes to win on Court Philippe Chatrier. But, as it turns out, she also has a Black Panther-inspired catsuit which makes her feel like a "warrior princess".
"I think people need to talk about it more because it's nearly like the fourth trimester", she also says to Bazaar.
Williams battled back from a 3-0 deficit in the tie-break to take the first set.
Barty took the first set 6-3 with typically combative, speedy play and Williams had it all to do to turn the match around.
United States calls emergency UN Security Council meeting over strikes on Israel
The Israeli government did not reply to the Palestinian statements and released no official announcements regarding the ceasefire. He added that "of course, things could change". "I don't think serious people in Israel want to reoccupy Gaza", said Yaar.
Social media seemed to approve of Serena's look and her game. It lead to her having a laugh as the chair umpire begged for the crown to maintain decorum.
"I'm very happy. She played really well, she made a lot of aces". Williams, though, was clearly not at her best.
- After playing so infrequently, it's as if Serena Williams is starting from scratch.
The 23-time Grand Slam victor used her serve, which is her biggest weapon to great effect in the decider, breaking the third game.
Williams maintained the momentum, a Barty backhand into the net put her a break up at 2-1, and showed no further signs of a lack of match practice.
'When you realize you have to fly back to SF for @initialized business tomorrow and you will miss watching @serenawilliams and @venuswilliams win their 1st doubles match of #RG18.
"We designed it way before the movie", she said, "but still, it kind of reminds me of that". I want to do the best that I can.