Croatia team mate Ivan Perisic blamed the country's FA chief Davor Suker's choice of "lesser opponents" with poor pitches for Pjaca's season-ending injury.
"Today Marko Pjaca underwent surgery on his right knee after sustaining a tear of his cruciate ligament and external meniscus while on duty with the Croatian national team last week," Juventus announced on their website. (www.juventus.com)
"Pjaca is expected to return to regular training again in approximately six months' time."
Juventus, who are top of Serie A, face third-placed Napoli on Sunday.
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(Reporting by Aditi Prakash in Bengaluru; editing by Mark Heinrich)
