Cristiano Ronaldo has fully recovered from coronavirus, 19 days after initially testing positive for the disease.
The Juventus forward, 35, initially returned a positive test while on international duty with Portugal earlier this month.
Juventus were without the five-time Ballon d'Or winner for their previous four matches, including Wednesday's Champions League Group G defeat to Barcelona, winning just once in that time.
But the former Real Madrid and Manchester United forward is available once again as Juventus resume their Serie A campaign at Spezia on Sunday.
The statement from Juventus read: "Cristiano Ronaldo carried out a check with a diagnostic test (swab) for Covid 19.
"The exam provided a negative result. The player has, therefore, recovered after 19 days and is no longer subjected to home isolation."
There was a big build-up surrounding Ronaldo's potential reunion with Barcelona's Lionel Messi, but the forward's prolonged bout of coronavirus delayed two of football's best-ever players meeting again.
They will, though, have the chance to face off when Juventus head to Barcelona on December 8 in the penultimate group game of their Champions League campaign.