Serie C club Bari have condemned a group of their supporters who torched a minibus carrying fans of local rivals Lecce.
De Laurentiis had a bid for the club, in Serie D after being declared bankrupt, accepted ahead of an offer from Lazio president.
The Serie B promotion playoffs have been postponed by a week because Bari could be deducted two points on Friday.
Malaysian businessman Datuk Dr Noordin Ahmad has bought Italian football club FC Bari.
Fans who attended Bari's 2-0 defeat to Lecce in May 2011 have been awarded €400 each in damages after it was proven that the game had been fixed.
"A sad day for Swedish football when one of our big stars and World Cup heroes has left us," a statement from Swedish Football Association (SvFF) chairman Karl-Erik Nilsson read.
No action will be taken against Avellino forward Gianmario Comi for allegedly biting an opponent in a Coppa Italia match at the weekend since there is no footage of the incident, according to league rules.