Teenage swimmer David Kratochvil poses for a photo during his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

David Kratochvil, a teenage swimmer who prepares for the Paralympic Games in Paris, poses for a photo during his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

Teenage swimmer David Kratochvil is tapped by his father Jiri during his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

Teenage swimmer David Kratochvil gets ready for his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

David Kratochvil, a teenage swimmer who prepares for the Paralympic Games in Paris, accompanied by his father Jiri arrives for his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

David Kratochvil, a teenage swimmer who prepares for the Paralympic Games in Paris, gets ready for his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

Teenage swimmer David Kratochvil is tapped by his father Jiri during his training in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)

David Kratochvil, a teenage swimmer who prepares for the Paralympic Games in Paris, trains in Tachov, Czech Republic, Wednesday, July 3, 2024. (AP Photo/Petr David Josek)