"Good Morning America" co-anchor Robin Roberts announced she would begin her medical leave from the show a bit earlier than expected to receive treatment for her blood and bone marrow disease.
Roberts, 51, said on Wednesday's show that she was "not feeling well" and would "get some vacay" before her upcoming bone-marrow transplant. She said at a Television Critics Association panel last week that she planned to take the medical leave closer to the fall.
She and her ABC News colleagues said at the time that Katie Couric, Diane Sawyer, Barbara Walters and the other women of "The View" might contribute to "GMA" during Roberts' treatment.
Roberts said in June that she has has the blood and bone-marrow disease myelodysplastic syndrome, or MDS. Five years ago she successfully battled breast cancer.
She said at the time of the MDS announcement, "My doctors tell me I'm going to beat this -- and I know it's true."