Veronica Roberts

New York, NY]----In a touching Monday episode of Good Morning America on ABC TV7, anchor Robin Roberts tearfully announced she was battling yet another life-threatening disease.

With co-hosts George Stephanopoulos and Josh Elliot tightly holding her hands, and Lara Spencer and Sam Champion on either side, Roberts announced that she has a rare blood disorder called myelodyplastic syndrome (MDS) which requires a bone marrow transplant. She revealed that her sister Sally-Ann, who also appeared on the show, is luckily a 100 percent match and would be her donor. Treatments to prepare her for the transplant would begin later today.

Robin said she developed this disorder from the treatments she received while fighting her bout with breast cancer five years ago.Cemo is known to have dangerous side effects. Her co-hosts all vowed to be there for her and jokingly tried to lighten the heavy mood on Robin herself cracked a few jokes through the tears.

Robin wrote on the GMA website that she received the bad news on the same day the show celebrated topping The Todays Show's rating for the first time in 16 years. She also wrote of her interview with president Obama following her previous day of bone marrow testing. Even in sad times, the GMA co-host kept her sense of humor, saying that having a drill in her back while receiving word of the biggest interview of her career showed God didn't give us more than we can handle.

Robin will be gone form GMA for a while but assured her audience that they will be in capable hands with her fellow co-hosts.

She said she is a fighter and intends to fight this disorder. MDS usually affects people in their 70s plus, much older than Robin Roberts and her doctors are reportedly confident that her age and fitness would work in her favor.