Cristiano Ronaldo has tested positive for the coronavirus, raising questions about a possible outbreak among his teammates and recent opponents.

The Portuguese national team announced the news Tuesday, noting that Ronaldo was in isolation and not showing any symptoms. But he’s been in close contact with plenty of other soccer players in recent days.

The incubation period of the coronavirus ranges from two to 14 days, according to the CDC. Ronaldo first tested positive Monday night, Portugal manager Fernando Santos said.

On Oct. 3, Italian champions Juventus, for whom Ronaldo plays, announced that two staff members tested positive for COVID-19. Ronaldo tested negative shortly afterward and joined the Portuguese team on Oct. 5.

Ronaldo played in Portugal’s game against Spain on Wednesday, Oct. 7, five days prior to his positive test. The 35-year-old was on the field for the entirety of Portugal’s match with France on Saturday, two days before Ronaldo was diagnosed with COVID-19.

The average incubation period of the coronavirus is about five days.

 
 
 
 
 
 
 
 
 
 
 
 
 

Good morning! _❤️ #blessed

A post shared by Cristiano Ronaldo (@cristiano) on

Testing in other sports suggests that Ronaldo’s opponents are unlikely to have contracted the virus from the Portuguese star.

In Major League Baseball, the Miami Marlins and St. Louis Cardinals experienced coronavirus outbreaks within the clubhouse. The Tennessee Titans recently had at least a dozen players test positive for the coronavirus. None of the players who faced those teams just prior to the positive tests were diagnosed with the coronavirus in the aftermath of those games.

Ronaldo was pictured hugging France’s Kylian Mbappé Saturday. It was reminiscent of Kansas City Chiefs quarterback Patrick Mahomes hugging New England Patriots cornerback Stephon Gilmore, who was diagnosed with COVID-19 less than two days later. Nine days since the Chiefs played the Patriots, Mahomes hasn’t tested positive for the coronavirus.

According to the CDC, “close contact” with an infected individual is an interaction within six feet of a person that lasts for at least 15 minutes.

Of course, nothing is certain when it comes to the spread of the coronavirus, and Ronaldo has spent time with individuals away from the soccer field.

 
 
 
 
 
 
 
 
 
 
 
 
 

Unidos dentro e fora do campo! ______ #todosportugal

A post shared by Cristiano Ronaldo (@cristiano) on

Late Monday afternoon, Ronaldo posted a photo to social media of himself and members of the national team seated at a table. Each member of the team tested negative for the coronavirus Tuesday, though that doesn’t mean positive tests won’t show up in the coming days.

"I spoke to the Portuguese Football Federation, which has a testing system done every day," Portugal president Marcelo Rebelo de Sousa told reporters Tuesday. "The players come from different countries. There is an immediate control of their situation. What I was told is that there are no other individuals that have tested positive."

Ronaldo’s last 14 days

  • Oct. 5: Instagram post with family
  • Oct. 7: Portugal vs. Spain
  • Oct. 11. Portugal vs. France
  • Oct. 12: Team meal, positive COVID-19 test
Cristiano Ronaldo played for Portugal against France on Sunday
Cristiano Ronaldo played for Portugal against France on Sunday AFP / Jonathan NACKSTRAND