Serena sizzles in return to major

Williams eventually revealed that she had an emergency cesarean section, then encountered trouble breathing afterward because of a pulmonary embolism and needed a follow-up operation.

“Just literally not sure if I was going to make it or not at several different times,” Williams said. “A lot of people have really reached out, because they have so many similar stories, too. I feel like a lot of people don’t talk about it. They talk about the baby and how happy they are. But it’s a lot that goes into it with the pregnancy and with giving birth, and it’s called a ‘miracle’ for a reason.”

The first match of her comeback was in doubles alongside her older sister, Venus, for the U.S. Fed Cup team in February. She entered two tournaments in singles the next month, going 2-2. An absence of more than two months followed, until Tuesday in Paris.

So a woman who has spent hundreds of weeks ranked No. 1 is currently No. 451 and unseeded at the French Open, a subject of some debate: Should her past success accord her the protection a seeding offers? Williams faces 17th-seeded Ash Barty of Australia next.

“She’s a genuine champion,” Barty said. “What she’s done to be able to get back … is a pretty amazing thing.”

Tuesday’s return was striking, from Williams’ powerful shots to her outfit, which called to mind the “catsuit” she wore at the 2002 U.S. Open.

On the fifth point, she delivered an ace at 112 mph.