Eric Dane, appearing on today’s Good Morning America, said in a taped interview with Diane Sawyer that due to ALS he no longer has use of his right arm and that he expects to lose use of his left hand.

Eric Dane has opened up about living with amyotrophic lateral sclerosis (ALS), formerly known as Lou Gehrig's disease, in a candid new interview just months after he revealed his diagnosis. Speaking to Diane Sawyer on Good Morning America on Monday, the Euphoria star said: “My left side is functioning, my right side has completely stopped working.”

It's been a sobering journey for Eric Dane since being diagnosed with ALS. The Grey's Anatomy alum sat down with Diane Sawyer on Good Morning America in his first TV interview since revealing his diagnosis in April,