Published February 4, 2021, 1:47 PM Craig Tiley, chief executive officer and Australian Open tournament director, speaks during a press conference at Melbourne Park in Melbourne on February 4, 2021, as preparations for the Australian Open were thrown into chaos when up to 600 players and officials were told to isolate and get tested after a hotel staff member tested positive for COVID-19 coronavirus. (Photo by DAVID GRAY / AFP) Australian Open chief Craig Tiley said he was “absolutely confident” the tournament will start next week despite a fresh coronavirus case that halted warm-up tournaments and forced hundreds of players and officials into isolation on Thursday. The case, a worker at one of the Melbourne tournament’s designated quarantine hotels, has caused yet more chaos before the year’s first tennis Grand Slam, which has already been delayed three weeks over coronavirus problems.