Juventus have announced further tests will be carried out on Andrea Barzagli after the defender strained a calf muscle in training.
Barzagli, 37, is yet to make a Serie A appearance for the champions this season after Leonardo Bonucci's return from AC Milan bolstered Massimiliano Allegri's options at the back.
Veteran centre-back Barzagli sustained the injury in Thursday's training session but initial tests have ruled out a serious tear for the former Italy international.
"The defender will undergo further examinations in the coming days," Juventus said in a brief medical update on Friday.
Barzagli has been with the club since 2011 following stints with Chievo, Palermo and Wolfsburg.
The defender has made 271 total appearances for the Turin-based club while winning seven Serie A crowns.
Juve host second-placed Sassuolo on Sunday seeking to extend a solid start to the 2018-19 season, with Allegri's men top of the table with maximum points after three games.