Legendary boxing promoter Don King was hospitalized with health issues recently ... spending more than a week receiving treatment a local facility, TMZ Sports has confirmed.
Mike Tyson -- who worked with King for nearly two decades -- first revealed the development during an interview with Cam'ron and Mase on the "It Is What It Is" podcast this week ... when he was asked about his current relationship with his former promoter.
"You know, Don is not doing well right now," the 58-year-old boxer said on Friday.