Leon Marchand of France holds a flag and poses with his medal after winning the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France competes during the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France poses with his medal after winning the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France, center, Carson Foster of United States, left, and Chase Kalisz of United States pose with their medals after winning the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France poses with his medal after winning the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France celebrates after finishing first during the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France celebrates after finishing first during the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)

Leon Marchand of France celebrates on the podium after winning the men's 400m medley final at the 19th FINA World Championships in Budapest, Hungary, Saturday, June 18, 2022. (AP Photo/Petr David Josek)