Eric Dane opened up about his recent ALS diagnosis on "Good Morning America," telling Diane Sawyer that he now only has "one functioning arm."

Eric Dane reflects on his ALS diagnosis and the close relationship with Rebecca Gayheart after their reconciliation earlier this year

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.”