“This is going to continue to brew over the next 12 months.”

Tensions were high on the men’s 400m free podium, Australian Mack Horton refused to stand next to Chinese swimmer Sun Yang who's facing allegations of doping rule violations that could result in a #Tokyo2020 ban pic.twitter.com/9QN1VfUln7

— CBC Olympics (@CBCOlympics) July 21, 2019