Australian Open: Quarantining tennis players voice 'unequal practice' frustrations

Instead of training for up to five hours a day as they prepare for the Australian Open, 72 players find themselves unable to leave their hotel rooms under quarantine rules -- and a number of them are vocally expressing their frustrations.

Some are not only frustrated. Covid-19 Quarantine Victoria Commissioner Emma Cassar said on Sunday that there had been a "small few" people -- including a player -- within the Australian Open quarantine hotels who were "testing our procedures." A fourth Covid-19 infection was recorded among the passengers on the two charter flights carrying players to Melbourne for the Australian Open in recent days, according to Cassar.