Tatjana Schoenmaker, of South Africa, celebrates after winning the gold medal in the women's 200-meter breaststroke final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/David Goldman)

Tatjana Schoenmaker of South Africa swims in a women's 200-meter breaststroke semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Tatjana Schoenmaker, right, of South Africa, celebrates after her women's 200-meter breaststroke semifinal as Annie Lazor, of the United States, watches at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Caeleb Dressel, of United States, after winning a men's 100-meter butterfly semifinal at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/David Goldman)

Evgeny Rylov, of the Russian Olympic Committee, swims to victory in the men's 200m backstroke final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jeff Roberson)

Emma McKeon of Australia starts in a women's 100-meter freestyle semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Caeleb Dressel, of the United States, after swimming to victory in a men's 100m butterfly semifinal at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jeff Roberson)

Caeleb Dressel, of United States, swims in a men's 100-meter butterfly semifinal at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

Tatjana Schoenmaker of South Africa swims in a women's 200-meter breaststroke semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

From left, Annie Lazor, of United States, Tatjana Schoenmaker, of South Africa, and Lilly King, of United States, pose with their medals after the women's 200-meter breaststroke final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

CORRECTS NAME AND RACE - Emma Mckeon, of Australia, celebrates after winning the gold medal in the women's 100-meter freestyle final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

Tatjana Schoenmaker, right, of South Africa, celebrates after her women's 200-meter breaststroke semifinal with Annie Lazor, of the United States, at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Caeleb Dressel, of the United States, swims to victory in a men's 100m butterfly semifinal at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jeff Roberson)

Evgeny Rylov, of the Russian Olympic Committee, swims in a men's 200-meter backstroke semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Charlie Riedel)

From left, Lilly King, of United States, Tatjana Schoenmaker, of South Africa, and Annie Lazor, of United States, pose at the podium after the women's 200-meter breaststroke final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Gregory Bull)

Shun Wang, of China, swims to win the gold medal in the men's 200-meter individual medley final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

Emma McKeon, of Australia, swims in a women's 100-meter freestyle semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Shun Wang, of China, celebrates after winning the gold medal in the men's 200-meter individual medley final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/Jae C. Hong)

Michael Andrew of the United States swims in a men's 200-meter individual medley semifinal at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Matthias Schrader)

Michael Andrew, of United States, comes off the pool after swimming in the men's 200-meter individual medley final at the 2020 Summer Olympics, Friday, July 30, 2021, in Tokyo, Japan. (AP Photo/David Goldman)