Collina has been heavily criticised this season for the plethora
of refereeing mistakes that have engulfed this Serie A campaign.
The 48-year-old is particularly unpopular with Juventus fans after
the Gazzetta dello Sport printed a revised championship table based
on points lost through refereeing errors.
The Bianconeri topped the table above Inter, who had been shown to
have accumulated many more points than they should have done.
This eventually led to Juve sending an open letter to the Italian
Football Federation complaining that they were being penalised as a
follow on from the Calciopoli crisis in 2006.
La Nazione says that Collina, who refereed the 1999 Champions
League final and the 2002 World Cup final, received a bullet in the
post last week.
This news all comes after the events at the Stadio Ferraris on
Sunday afternoon. Collina was watching the game between Sampdoria
and Torino in the stands, when he was verbally abused and taunted
by fans in the stadium following Antonio Cassano’s sending off.