Eric Dane, an actor best known for playing Dr. Mark Sloan, aka "McSteamy," on "Grey's Anatomy," discussed his health challenges after being diagnosed with ALS.

Dane, who is known for his roles on “Grey’s Anatomy” and “Euphoria,” sat down with ABC News, saying, “I have one functioning arm ... my left side is functioning. My right side has completely stopped working.” He said that his left arm is “going.”

Grey's Anatomy star Eric Dane says one area of his body has 'completely stopped working' following his ALS diagnosis. The actor, 52, broke the news of his devastating health battle - which stands for amyotrophic lateral sclerosis, but is sometimes known as Lou Gehrig's disease - back in April.