Italy: Juventus midfielder Miralem Pjanic, who has been linked with a move to Spanish giants Barcelona in a swap deal with Brazil international Arthur, was among the players to return to training at the club's base in Turin on Tuesday.
The Serie A leaders have called all of their players back after the Italian government announced that football clubs could begin training again.
"After a day of tests and exams carried out yesterday at J Medical, some of the Juventus players started training at the Continassa Juventus Training Center, where they officially began their recovery to regain competitive form," the club said in a statement.
Pjanic, along with fellow midfielder Rodrigo Bentancur and reserve goalkeeper Carlo Pinsoglio, were tested for coronavirus ahead of the trio's return to training, where they will work in isolation and follow social distancing rules.
According to reports in the Italian media, Cristiano Ronaldo has begun a 14-day quarantine before he can take part in formal club training activity, after he landed back in Italy on Monday from Madeira.
Although players were allowed to return to training from Monday, Italian Sports Minister Vincenzo Spadafora on Sunday (local time) said that it is too early to talk about the resumption of the football season.
Spadafora, in a Facebook post, also said that players will only be able to train individually when they return to training, adding that teams' training will not resume until May 18.