Robin Roberts: I'm Fighting Bone Marrow Disease 'GMA' host insists she'll beat latest health challenge By Polly Davis Doig, Newser Staff Posted Jun 11, 2012 10:57 AM CDT 3 comments Comments Robin Roberts with her sister Sally-Ann Roberts and ABC News' Diane Sawyer on "Good Morning America" Monday, June 11, 2012. (AP Photo/ABC, Ida Mae Astute) (Newser) – Robin Roberts is fighting a rare bone marrow disorder and will undergo a transplant, the Good Morning America co-host revealed today. "Sometimes treatment for cancer can lead to other serious medical issues and that's what I'm facing right now," said an emotional Roberts, who successfully fought breast cancer five years ago, notes the Huffington Post. She added that her condition, MDS, used to be known as "pre-leukemia," but insisted that her chances of survival are excellent given her youth and fitness. "I'm going to beat this," she said, choking up. "My doctors say it and my faith says it to me." In a separate blog, Roberts elaborated, explaining that her sister is an excellent bone-marrow match who will serve as her donor later this year, and emphasizing that's it's all about perspective: "A few weeks ago, during a rather unpleasant procedure to extract bone marrow for testing, I received word that I would interview President Obama the next day. The combination of landing the biggest interview of my career and having a drill in my back reminds me that it helps to have a good sense of humor when we run smack into the absurdity of life."