More than 1,200 officials, players, and support teams arriving in Australia for the two-week tournament Australian Open have to stay in quarantine.

72 players have been ordered to stay isolated in their rooms for the full two weeks after arriving on flights with passengers who tested positive for COVID-19. Strict rules include daily testing for COVID-19 and only being allowed out of their designated hotel rooms for five hours a day for training and treatment.

Some players argued that they would be disadvantaged by a lack of training, and there have been issues when isolated players opened hotel room doors to hold conversations. The world¢¥s No. 1 male tennis star, Novak Djokovic, issued tournament organizers with demands, including reducing the length of isolation and moving players into private houses with a tennis court.

Difficult words: quarantine (when someone must stay away from other people to prevent the spread of a disease), isolated (having minimal or no contact with other people), designated (officially chosen for a particular role or purpose).