The 25-year-old Italy international, a team-mate of Cristiano Ronaldo, has been placed in quarantine as medics carry out checks on those with whom he has been in contact.
A statement on the club’s official website said: “The footballer Daniele Rugani has tested positive for Coronavirus-COVID-19 and is currently asymptomatic.
“Juventus Football Club is currently activating all the isolation procedures required by law, including those who have had contact with him.”
Rugani has made seven senior appearances to date this season, the last of them in a 2-1 league win at Spal on February 22.