During a recent appearance on former NBA coach Mark Jackson's "Come And Talk 2 Me" podcast, Thomas revealed he was diagnosed with Bell’s palsy.The condition resulted in his facial muscles drooping.

Thomas, 63, provided more details later during his return to NBA TV’s pregame show, where he works as an analyst. “As you know, I got a little Bell’s palsy,” he said. “I’m dealing with it.

Hall of Famer Isiah Thomas reveals that his slurred and muffled speech is caused by a neurological condition called Bell's palsy. ... The weakening of the facial muscles is often short-term.