Katie Ledecky leads a field of Olympic champions at the final Pro Series meet before the U.S. Championships, live this weekend on NBC Sports.
Ledecky, the four-time Rio Olympic champion, is entered in a 1500m freestyle (Thursday) for the first time since the 2015 World Championships, plus the 100m and 200m frees (Friday and Saturday) in Santa Clara, Calif.
Ledecky, a rising sophomore at nearby Stanford, is joined at the meet by a bevy of gold medalists including Simone Manuel, Ryan Murphy, Anthony Ervin, Nathan Adrian and Matt Grevers.