Former Lazio and New York Cosmos star Giorgio Chinaglia has died aged 65 after suffering a heart-attack at his home in Florida on Sunday morning.
Chinaglia was a well-regarded figure in both Italy and the United States for his goalscoring exploits in both countries.
The striker scored 98 goals in 209 games for Rome giants Lazio, before moving to New York Cosmos in 1976, scoring 193 goals in 213 games for the club.
The news was announced by Milan executive Umberto Gandini via Twitter message.
Gandini confirmed that Chinaglia died in his Florida home on Sunday morning, having originally been hospitalised several days ago due to a heart-attack.
The footballer, who won 14 caps for Italy, later hosted a daily football show on US radio and in 2000 was inducted into the US soccer Hall of Fame.
Former Italy and Lazio striker Giorgio Chinaglia has died aged 65, a work colleague and family friend has confirmed.
Chinaglia, who was born in Italy but grew up in Wales and began his professional career with Swansea, was found dead at 9am US eastern time by his adopted son Anthony at the home they shared in Florida. He had suffered complications after treatment for a heart problem.
Chinaglia, who represented Italy at the 1974 World Cup, leaves a wife, Angela, and five children.
Charlie Stillitano, who hosted a sports programme on satellite radio station Sirius XM alongside Chinaglia and who has been asked to speak on behalf of the family, said: "This morning I heard from his son and we had confirmation that he had passed.''