MLB Player Tommy Hanson -- Overdosed on Cocaine & Alcohol

Former Atlanta Braves pitcher Tommy Hanson died of cocaine and alcohol toxicity ... according to the autopsy results.

Hanson, who was only 29, died on November 9th -- he was found unresponsive at a friend's home in the Atlanta area. At the time of his death, the coroner listed "overdose" as a possible cause of death.

We spoke with the coroner who tells us the autopsy showed Hanson died from the combination of cocaine and booze.