Juventus will need to sell at least two players to make room in their squad for Paul Pogba, according to reports.
The France international is out of contract at Manchester United at the end of the season.
The Frenchman spent two of his four years at Juventus working under Allegri, who helped make him into the player who was sold to United for a then-world record fee of £89m in 2016.
The exit of those two midfielders would allow the club to offer Pogba a contract worth up to £10.2m per year.
However, the midfielder currently earns £12.75m at Old Trafford and will presumably be offered more by United if he puts pen to paper on a new deal.
"For sure Turin has remained in his heart and he cares a lot about these things," the Italian agent said last month.
"The possibility of returning to Juventus is there but it also depends on Juve."
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