Fans of Good Morning America will wake up to some big staff changes.
Effective immediately, Amy Robach is the news anchor on ABC's top-rated morning show, according to a memo that ABC News President Ben Sherwood sent to staffers on Sunday.
She'll replace Josh Elliott, who is heading to NBC Sports.
Elliott, 42, had been in contract discussions with ABC for months. "We worked hard to close a significant gap between our generous offer and his expectations. In the end, Josh felt he deserved a different deal and so he chose a new path," Sherwood writes in the e-mail.
Citing sources close to the story, The Hollywood Reporter says Elliott will "have a robust role on all of NBC Sports' signature franchises including the network's coverage of the Triple Crown, the Olympics and Sunday Night Football."
Elliott jumped from ESPN to GMA May 2011.
Robach, 41, has been with ABC News since 2012. She filled in for GMA host Robin Roberts during her recovery from a bone marrow transplant for myelodysplastic syndrome (MDS). In November 2013, Robach revealed that she is battling breast cancer.
Elliott is the second high-profile departure from Good Morning America in the past few months. In December, meteorologist Sam Champion left for The Weather Channel, where he hosts a new morning show, AMHQ With Sam Champion.