The 23-year-old is anticipated back in Barcelona for training on Monday as the Catalans get ready for their next league match versus Atletico.
Pjanic had agreed an offer with Barcelona some time back and passed a medical in Turin on Sunday, according to Sport.
The 30-year-old will head to the Camp Nou after completion of the season with Arthur heading the other method. The Brazilian has signed on for five seasons with the Serie A champions.
Miralem Pjanic has actually reportedly signed a four-year handle Barcelona with the transfer set to be formally revealed on Monday.
Both clubs require the offer to go through prior to completion of June for accounting factors, its still being reported that Juve are handing over Pjanic plus EUR10m for Arthur.
