At the Olympic trials, Kaylee McKeown sets a new world mark in the 100m backstroke.
Kaylee McKeown, 19, beats previous global benchmark by 0.12 seconds Seebohm finishes second to qualify for fourth Games in Tokyo
Read MoreKaylee McKeown, 19, beats previous global benchmark by 0.12 seconds Seebohm finishes second to qualify for fourth Games in Tokyo
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