“Grey’s Anatomy” star Eric Dane revealed he is slowly losing mobility due to his ALS. During his sit-down interview for “Good Morning America” with Diane Sawyer, Dane said he is losing function in his limbs.

Former “Grey’s Anatomy” star Eric Dane is dealing with some major side affects amid his ongoing battle with ALS. “I have one functioning arm,” the 52-year-old said in an interview with Diane Sawyer that aired Monday on " Good Morning America ." “My right side [has] completely stopped working,” Dane said.