Antonio Conte, Inter Milan manager is reported to have received an envelope containing a bullet and other threats.
The package has led to increased security at Inter Milan as police are working around the clock to establish the source and motive of the sender.
Conte who is a former Chelsea, Italy and Juventus coach joins the likes of Napoli players who are living in fear for their lives.
The players are afraid Napoli fans may attack them after they turned down a retreat organized by the club boss.
To protect themselves and their families, they are reported to have hired personal security officers.
Napoli forward Insigne is reported that his wife has already left the country to seek a safe life following the fear.
The club’s management has already threatened to deduct 25% from their salaries as punishment for boycotting the retreat.