Maurizio Sarri is on the same level as Pep Guardiola, Jurgen Klopp and Mauricio Pochettino, according to former AC Milan and Italy boss Arrigo Sacchi.
Sarri is back in Italian football as coach of Serie A champions Juventus after just one season in the Premier League with Chelsea.
Prior to his appointment it was Manchester City boss Pep Guardiola who was believed to be in contention to succeed Massimiliano Allegri, who stepped down last month after five years with the Bianconeri.
It was claimed Guardiola was considering quitting City in favour of a move to Turin after three seasons and six trophies at Etihad Stadium.