Chris Eubanks and Brandon Holt were among Monday's winners after waiting out a wet start to the event.

Tomic exited in the first round of qualifying, saying he likely had the virus. Subsequent testing has now confirmed that's the case.

"I will buy you dinner if I don’t test positive in three days. They are allowing players to come onto the court with rapid tests in their room," said Tomic on court during his defeat to Roman Safiullin.