Maura Tierney is undergoing a "medical evaluation," resulting in the postponement of production on her new NBC show, "Parenthood," the network confirmed on Saturday.
Work on the show, which was set to premiere this fall, has been postponed for eight weeks "due to a medical evaluation that valued cast member Maura Tierney is undergoing," NBC said in a statement.
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NBC declined to give out further details on Maura's condition.
"The top priority for NBC, Universal Media Studios and Imagine Television is the well-being of Ms. Tierney," the statement continued. "We are unable to release further details, and ask that you respect her privacy at this time."
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Promos for "Parenthood" have already been airing on NBC, but the show will now start midseason.
Instead, "Mercy," a drama starring Michelle Trachtenberg, Taylor Schilling and Jamie Lee Kirchner, will premiere this fall.
Maura's role as Sarah, one of four adult children, on "Parenthood," follows up her decade long stint as nurse Abby Lockhart on NBC's medical drama, "ER."
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"Parenthood" also stars Peter Krause, Dax Shepard and Craig T. Nelson.
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