Morning Mail: Kaylee McKeown powers to gold, academics say university cheating out of control, Rex enters administration

Kaylee McKeown reacts after winning the 100m backstroke gold at the Paris Olympics. Photograph: Maddie Meyer/Getty Images

Good morning. Australian swimmer Kaylee McKeown has lit up the pool at the Paris Games, powering to gold – and setting a new Olympic record – in a searing 100m backstroke final that was the latest encounter in her fierce rivalry with American Regan Smith.

But there was heartbreak for the women’s sevens squad, tumbling out of the medals after two costly defeats overnight.