Osaka went up to a 5-0 lead in the first set before Osoria was allowed to take their first clips in the match.
But throughout the match, it was a sure victory for the reigning champion of the Australian Open.
- I think I played given the conditions.
I like the warm conditions here and when I come here everyone is welcoming, I am sure it has a positive effect on me, says Osaka after the victory.
The former world setter, who also won the tournament in 2019, is now on to the second round.
Osaka had a turbulent 2021 when she withdrew from the French open and boycotted press conferences due to mental illness.
She then went out already in the third round of the Olympics, and after the US Open in September, she announced that she would take a break from tennis.