Juventus are being urged to secure Adrien Rabiot to a new deal.
The France midfielder is off contract at the end of the month and interesting Manchester United and PSG.
But former Juve midfielder Domenico Marocchino is urging management to intervene.
He told TMW: Rabiot is the thermometer of the team, he knows how to do everything fairly well. When you see him after a few minutes you understand how the team is.
"If he leaves, it's a problem."
Rabiot is this week away with the France team.