Rocky Actor Burt Young Dies At 83

"I and the World will miss you very much...RIP," wrote Sylvester Stallone

US actor Burt Young, a former boxer who earned an Oscar nomination for his breakout role as Sylvester Stallone's sidekick in the smash hit Rocky film series, has died at 83.

Stallone, who starred as the boxer Rocky Balboa in the iconic Hollywood franchise, on Wednesday hailed his "dear friend" Young as an "incredible man" and artist.

"I and the World will miss you very much...RIP," wrote the Rocky star on Instagram.