The Latest on the Olympics ahead of the Rio Games (all times local to Rio):
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1:45 p.m.
Nathan Adrian sees the changing tide at the U.S. Olympic swimming trials, with at least 17 first-timers making the team for Rio and some veterans getting cast aside.
Adrian says he knew there would be several new faces coming up in the sport, he just didn't know when it would happen. He credits the deep talent pool in the U.S. for the influx of newcomers.
The 27-year-old sprinter says he's just trying to keep up. Adrian qualified fastest for the 100-meter freestyle on Wednesday morning.