Australian swimmer breaks 100-meter backstroke world record

ADELAIDE, Australia (AP) — Kaylee McKeown has broken the 100-meter backstroke world record on the second night of the Australian Olympic swim trials. The 19-year-old McKeown clocked 57.45 seconds in Sunday night's final at the South Australian Aquatic Centre. McKeown's time improved the previous world mark of 57.57 set by...