Cherry and Norman face off in 400-meter final at Tokyo Games

United States' Margaret Steffens reaches for the ball during a preliminary round women's water polo match against South Africa at the 2020 Summer Olympics, Wednesday, July 28, 2021, in Tokyo, Japan. (AP Photo/Mark Humphrey)

Slovenia's Luka Doncic (77) grabs a rebound ahead of Germany's Danilo Barthel (22) during a men's basketball quarterfinal round game at the 2020 Summer Olympics, Tuesday, Aug. 3, 2021, in Saitama, Japan. (AP Photo/Charlie Neibergall, Pool)

Heimana Reynolds of the United States takes part in a men's park skateboarding practice session at the 2020 Summer Olympics, Monday, Aug. 2, 2021, in Tokyo, Japan. (AP Photo/Ben Curtis)

Michael Cherry, of the United States, reacts after his semifinal of the men's 400-meters at the 2020 Summer Olympics, Monday, Aug. 2, 2021, in Tokyo. (AP Photo/Petr David Josek)

April Ross, left, of the United States, celebrate with teammate Alix Klineman a winning point during a women's beach volleyball match against Germany at the 2020 Summer Olympics, Tuesday, Aug. 3, 2021, in Tokyo, Japan. (AP Photo/Petros Giannakouris)

Michael Norman, of United States, competes in a heat in the men's 400-meter run at the 2020 Summer Olympics, Sunday, Aug. 1, 2021, in Tokyo. (AP Photo/Petr David Josek)

United States' goalkeeper Adrianna Franch reacts after Canada's Jessie Fleming scored the opening goal from the penalty spot during a women's semifinal soccer match at the 2020 Summer Olympics, Monday, Aug. 2, 2021, in Kashima, Japan. (AP Photo/Andre Penner)