Aaron Shackell reacts after winning the Men's 400 freestyle finals Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Darron Cummings)
Aaron Shackell reacts after winning the Men's 400 freestyle finals heat Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Darron Cummings)
Aaron Shackell reacts after winning the Men's 400 freestyle finals Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapoils. (AP Photo/Michael Conroy)
Aaron Shackell reacts after winning the Men's 400 freestyle finals Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapoils. (AP Photo/Michael Conroy)
Gretchen Walsh and Alex Shackell watch results after the Women's 100 Butterfly Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Darron Cummings)
Aaron Shackell reacts after winning the Men's 400 freestyle finals heat Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Darron Cummings)
Aaron Shackell swims during the Men's 400 freestyle preliminaries Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Michael Conroy)
Aaron Shackell swims during the Men's 400 freestyle finals heat Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Michael Conroy)
Aaron Shackell swims during the Men's 400 freestyle finals heat Saturday, June 15, 2024, at the US Swimming Olympic Trials in Indianapolis. (AP Photo/Michael Conroy)