Pjaca, 21, was forced to pull out of the Croatia squad for the World Cup qualifiers against Kosovo and Finland after failing to come through a training session on Monday.
Croatia diagnosed Pjaca as having suffered a minor break to his left fibula, but Juve say the injury is not as serious as first feared.
“Marko Pjaca has undergone new imaging scans (CT and MRI) at the club’s J Medical facility that have revealed bruising to the distal region of the left fibula with no evidence of fracturing,” a club statement read.
“The player will continue to be monitored and the prognosis will be better defined in the coming days on the completion of further examinations.”
Initial reports had suggested that Pjaca could face six weeks on the sidelines, though his recovery is likely to be much swifter should Juve’s diagnosis prove correct.
The winger, signed from Dinamo Zagreb in July for a reported fee of €23million, has made seven appearances for Juve this season in all competitions.