FILE - Elaine Thompson-Herah of Jamaica, reacts as she wins the women's 100-meters final at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo. Among those who might break their own world records at the world championships are hurdlers Sydney McLaughlin and Karsten Warholm and shot putter Ryan Crouser. Jamaican speedster Elaine Thompson-Herah could make a run at 100-meter record that Florence Griffith-Joyner has held since 1988. (AP Photo/David Goldman, File)

FILE - The United States' Ryan Crouser competes in the men's shot put during the Prefontaine Classic track and field meet at Hayward Field Saturday, May 28, 2022, in Eugene, Ore. Among those who might break their own world records are hurdlers Sydney McLaughlin and Karsten Warholm and shot putter Ryan Crouser. Jamaican speedster Elaine Thompson-Herah could make a run at 100-meter record that Florence Griffith-Joyner has held since 1988. (AP Photo/Amanda Loman, File)

FILE - Sydney McLaughlin crosses the finish line to set a new world record in the women's 400 meter hurdles at the U.S. outdoor track and field championships, Saturday, June 25, 2022, in Eugene, Ore. Among those who might break their own world records at the world championships in Eugene are hurdlers Sydney McLaughlin and Karsten Warholm and shot putter Ryan Crouser. Jamaican speedster Elaine Thompson-Herah could make a run at 100-meter record that Florence Griffith-Joyner has held since 1988. (Chris Pietsch/The Register-Guard via AP, File)

FILE - Athletes competes during the decathlon high jump at the U.S. Olympic Track and Field Trials Saturday, June 19, 2021, in Eugene, Ore. A year after records fell fast and often at the Olympics, track and field returns to the world stage at one of the sport’s most hallowed venues. It’s Eugene, Oregon, known to the locals as TrackTown USA, and it features a sparkling renovated stadium and a very fast track. (AP Photo/Charlie Riedel, File)

FILE - Karsten Warholm of Norway wins the 400 meter hurdles during the 100th ISTAF athletics meeting at the Olympic Stadium in Berlin, Germany, Sunday, Sept. 13, 2021. Among those who might break their own world records at the world championships are hurdlers Sydney McLaughlin and Karsten Warholm and shot putter Ryan Crouser. Jamaican speedster Elaine Thompson-Herah could make a run at 100-meter record that Florence Griffith-Joyner has held since 1988. (AP Photo/Michael Sohn)