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.