Video: ‘Katie squared’ Ledecky and Grimes make 800 free final

Katie Ledecky of the United States swms the last leg of the women's 4x200-meter freestyle relay team at the 2020 Summer Olympics, Thursday, July 29, 2021, in Tokyo, Japan. (AP Photo/Morry Gash) (Morry Gash, Copyright 2021 The Associated Press. All rights reserved)

Katie Ledecky and 15-year-old teammate Katie Grimes went 1-2 in their 800m freestyle heat, setting up a potential podium moment in the final.