EXCLUSIVE: Kelly Ripa Is Giving 'Live!' Co-Workers 'Radio Silence,' Staffers Uncertain of Show's Future

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Michael Strahan's pending departure from Live! With Kelly and Michael has left those working on the daytime talk show feeling uncertain as to what the future holds, a source close to the ABC program tells ET.

Kelly Ripa is scheduled to resume her co-hosting duties on Tuesday, but many on staff question whether she'll actually be willing to sit next Strahan when that day comes.

WATCH: 'Live!' Audience 'Disappointed' Over Kelly Ripa's Unplanned Absence

The source adds that Ripa has not reached out to any of her Live! co-workers, and has instead chosen to give them "radio silence," while Strahan has taken "the high road."

This would be the second time the 45-year-old TV personality has been told last minute that a co-host of hers would be exiting the show, according to the source. The first time being Regis Philbin.

WATCH: Michael Strahan Calls First Live! Taping Without Kelly Ripa a 'Hard Day' for Everyone

Philbin, however, has come to Ripa's defense upon learning that Strahan will be leaving Live! in September to take on a full-time position at Good Morning America. "I haven't talked to anybody," the 84-year-old entertainer said when asked if he's been in contact with his former co-host. "[Executive producer Michael] Gelman, you know ...I don't want to know. I know what it is.They should have told her in the beginning."