The Australian Olympic Committee has doubled down on PPE as the biggest contingent of Olympic athletes and the bulk of Australian medal hopes arrived in Tokyo yesterday.South Australia faces a hard border with Victoria within days as authorities grapple with the escalating Covid-19 crisis spreading across the country.A strong campaign for the future of the River Murray is looming, as Federal Labor looks to make it a battleground issue that could sway the next election.And in sport, an undermanned Port Adelaide has pulled off a 13-point win against the odds, downing a St Kilda side hoping to jump into the top-eight. For updates and breaking news throughout the day, take out a subscription atadvertiser.com.au