The Zenit St. Petersburg midfielder is set to join the Serie A champion for around 18 million euros and will leave his international teammates to complete the move.
Axel Witsel is on the verge of completing a transfer from Zenit St. Petersburg to Juventus, Goal understands.
The Belgium international had vowed to stay at Zenit for another season and coach Mircea Lucescu confirmed that he had rejected a move to Everton.
However, the 27-year-old will leave Belgium's training camp to undergo a medical at the Serie A champion on Wednesday.