The news comes just hours after it was revealed fellow midfielder - Spurs' record signing - had left the club, joining Lyon on loan until the end of the season.
Allegri also felt Bentancur was wasted just sitting and gave him the licence to take advantage of his dynamism by frequently leaving his station in central midfield.
One player who outperforms all of these centre-midfielders in this department is Dejan Kulusevski.