Ronaldinho, 40, posted a video to his Instagram story revealing his diagnosis.
The former Barcelona superstar revealed he is asymptomatic and is self-isolating in Belo Horizonte, Brazil, after arriving in the city on Saturday.
“I’ve been here in BH since yesterday, I came to participate in an event,” Ronaldinho said.
“I took the test and tested positive for COVID-19. I’m fine, asymptomatic, but we’ll have to leave the event for later. Soon we will be there together. Big hug!”