Tunisian teen wins surprise Olympic swimming gold
Ahmed Hafnaoui, of Tunisia, celebrates after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Ahmed Hafnaoui, of Tunisia, celebrates after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Jul. 25, 2021 12:39 AM EDT
Ahmed Hafnaoui, of Tunisia, celebrates after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Charlie Riedel)

Ahmed Hafnaoui, of Tunisia, celebrates after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Charlie Riedel)

Jul. 25, 2021 12:47 AM EDT
Ahmed Hafnaoui, of Tunisia, reacts after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Ahmed Hafnaoui, of Tunisia, reacts after winning the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Petr David Josek)

Jul. 25, 2021 12:39 AM EDT
Ahmed Hafnaoui, of Tunisia, swims in the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Ahmed Hafnaoui, of Tunisia, swims in the final of the men's 400-meter freestyle at the 2020 Summer Olympics, Sunday, July 25, 2021, in Tokyo, Japan. (AP Photo/Martin Meissner)

Jul. 25, 2021 12:00 AM EDT