State health authorities said the man in his thirties was not infectious while at the famed Melbourne Cricket Ground on the second day of play "but there is potential he acquired the virus while there" or at a nearby shopping centre.
IND vs AUS: Former India opener Wasim Jaffer urged people not to compare him to anyone and put "undue pressure" on him.
Australia vs India: Spin spearhead Ravichandran Ashwin said losing regular skipper Virat Kohli was not easy for the team, but stand-in skipper Ajinkya Rahane stood up to the challenge and led from the front.
Australia vs India: Mohammed Siraj, making his Test debut, picked two wickets in the first innings and three in the second innings.
AUS v IND: The cricket fraternity hailed the Indian team for the "resilience and character" it showed to redeem itself after the Adelaide debacle to win the second Test in Melbourne.
AUS v IND: The Indian bowlers, despite Umesh Yadav's injury early into the second innings, reduced the home team to 133/6. The hosts have just a two-run lead with four wickets remaining in the second Test.
AUS vs IND: Sunil Gavaskar said Ajinkya Rahane's knock sent a message to the Australian camp that the Indian team will not just lie down and be walked all over.
AUS vs IND: Mitchell Starc rued the chances his team squandered in the field on Day 2 of the Boxing Day Test but also praised Ajinkya Rahane for his pressure-absorbing century.
India vs Australia Test Highlights: Having started Day 2 on 36/1, India finished on 277/5 at the MCG following an unbeaten century from Ajinkya Rahane.
Australia vs India: Ajinkya Rahane impressed many with his smart bowling changes and field placements on the opening day of the Boxing Day Test.