During a new interview, Eric Dane explained how he's found hope in the physician who has been leading his fight against ALS.

Now, however, the actor has shared a few more sobering updates about his health on Good Morning America. “My right side has completely stopped working,” he told the program. Dane said that he expects to lose control of the left side as well.

WATCH: Eric Dane on ALS Diagnosis: "I Have One Functioning Arm" (VIDEO) originally appeared on Daytime Confidential. Grey's Anatomy alum Eric Dane is opening up about his amyotrophic lateral sclerosis (ALS) diagnosis. In an interview on Good Morning America, Dane shared with Diane Sawyer how he and his family are coping with the disease.

The former “Grey’s Anatomy” star, who was recently diagnosed with ALS, recalled the dramatic episode when he realized he “couldn’t swim.”

Eric Dane opened up about reconciling with wife, "Beverly Hills, 90210" star Rebecca Gayheart, after their divorce was dismissed earlier this year.