Phelps ready to take final bow at U.S. trials

By Steve Keating OMAHA, Nebraska (Reuters) - Michael Phelps will swim in likely his final race in an American pool while Katie Ledecky is expected to chase a world record as the two biggest attractions at the U.S. Olympic trials take their final bows on Saturday. The eight days of cut-throat competition to select the U.S. swim team for the Rio Olympics will not end until Sunday with the women's 50 metres freestyle sprint and men's 1,500 free but Phelps and Ledecky will say goodbye looking to add