It was announced Barca had agreed an initial fee of €60million to take Pjanic to Camp Nou at the end of the season, with Arthur heading in the opposite direction in a deal that could eventually cost Juve €82m.
Pjanic is among the party named by Juve for the clash at the Luigi Ferraris, where the Bianconeri will continue their bid for a ninth Serie A title.
Speaking at a news conference on Monday, prior to the confirmation of the deal, Juve coach Maurizio Sarri said he had no doubts Pjanic would give his all to the cause before heading to Barca.
"If the transfer becomes official, [Pjanic] will be happy because he will end his career in a great team," Sarri said.
"The boy can be happy with this solution, I am peaceful because he is serious and intelligent. The possibility that he doesn't give us 101 per cent, I don't see it."
Juve are four points clear of second-place Lazio at the top of Serie A with 10 games remaining.