Ryan Lochte bids to become the oldest U.S. Olympic male swimmer in history at the Olympic Trials in Omaha.
After retiring from swimming, Michael Phelps stays involved in the sport ahead of the 2020 Tokyo Olympics.
Shelby Houlihan's name has been taken off the updated start lists for the U.S. Olympic trials, meaning the American record holder does not have a place in the 1,500 or 5,000 meter preliminaries Friday. Houlihan was handed a four-year ban for testing positive for trace amounts of the performance enhancer nandrolone. USA Track and Field initially said Houlihan would be allowed to run until all her appeals were exhausted.