Australian Open boss Craig Tiley says he is "absolutely confident" the Grand Slam will start as planned on Monday, despite 160 players waiting for the outcome of coronavirus tests. A total of 507 people connected to the event were told to isolate by Melbourne health officials on Wednesday after a hotel worker tested positive. Play at six warm-up events and the Slam draws were postponed on Thursday. "We fully expect to keep the original schedule after today," said Tiley. The warm-up events, which are all