Diego Maradona began self-isolating Tuesday after a person he works closely with showed symptoms of Covid-19, state news agency Télam reported.
Maradona, the coach of the Gimnasia y Esgrima team in Argentina's top flight, is now self-isolating at home, according to the agency. He will remain in quarantine until test results are known.
A bodyguard "woke up with Covid-19 symptoms and went into preventative quarantine until the relevant tests are carried out," added local sports paper Olé.
"Just in case and until there is more information, Maradona will remain confined at home," said Pagina/12 website, quoting "inside sources."
The footballing great, who led Argentina to World Cup glory in 1986, turns 60 years old on Friday and Gimnasia are due to play Patronato that same day.
Pagina/12 said he would undergo a rapid test on Thursday to see if he has the virus.
Maradona, who has a history of drug and alcohol abuse and poor health, is considered at high risk of coronavirus complications should he be infected. He has suffered two heart attacks in the past and contracted hepatitis.
Several weeks ago he went into self-isolation after one of his players contracted the coronavirus and last week he skipped training again.
Argentina has recorded more than a million coronavirus cases amongst its 44 million population with 29,000 deaths.
Gallardo in quarantine
River Plate coach Marcelo Gallardo is also in quarantine at home, the club said on Twitter.
On Saturday, he was in contact with a person who later tested positive for Covid-19, according to local media.
A revised league championship is due to restart this week. It was interrupted in March due to the pandemic.