Juventus fans emptied part of the Curva during their 1-0 win over Sassuolo in protest against action of the police.
Paul Pogba got a late winner in the match, and during the second half the Bianconeri fans sitting behind the goal emptied half the Curva Sud.
It is thought the protest by one of the ultra groups was due to the grievances against the treatment of fellow fans by the police.
