WATCH: Good Morning America's Robin Roberts reveals she needs bone marrow transplant after cancer treatment
On the day she learned she had made TV history, Good Morning America anchor Robin Roberts also discovered she was would be facing another tremendous health challenge in a life dotted with them.
That's one of the many poignant details in the open letter Roberts released this morning, after revealing on air that she has MDS -- a bone marrow and blood disorder which can afflict those recovering from cancer treatments. (at left, Roberts as she was recovering from treatment).
"I received my MDS diagnosis on the very day that Good Morning America finally beat the Today Show for the first time in 16 years," she said in her open letter to fans.
"Then 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," she added. "The combination of landing the biggest interview of my career and having a drill in my back reminds me that God only gives us what we can handle and that it helps to have a good sense of humor when we run smack into the absurdity of life."
Her on air announcement this morning was even more emotional, delivered at the end of the broadcast. See it below: