Good Morning America's Host Robin Roberts will have to go on medical leave in a few months for the blood and bone marrow disease myelodysplastic syndrome, and since she will be out for a few weeks producers have scheduled a who's who list of fill in hosts.

Abc sources say that each guest host will be in for a week then the next guest host will be announced on that Friday. Expect to see Diane Sawyer, Barbra Walters, Joan Lunden, Charlie Gibson, Chris Cuomo, and Connie Chung many more.

Robin's recovery period is expected to take up to four months, insiders are confident that because the cancer was detected early and she's in such good shape, she could be back much sooner!


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