Michael Strahan shocked America on Tuesday by announcing he would be leaving Live With Kelly and Michael for a full-time position on Good Morning America!
And apparently, Kelly Ripa was just as surprised — because her costar of four years dropped the bomb on her right after Tuesday's show!
Production sources told TMZ that the former NFL star sat down with Ripa and exec producer Michael Gelman at 10:30 a.m. EST to let them know he was parting ways with them for another morning talk show!
According to the source, Kelly and Gelman were "stunned and upset" by the news — because no one on the show had ANY clue Strahan was about to switch teams!
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Though it doesn't sound like the secrecy is the former New York Giants player's fault, as the stealthy move was orchestrated by Disney CEO Bob Iger — who reportedly already has a replacement plan to fill the seat next to Kelly.
One source told ET that the perky blonde's close friend Anderson Cooper is a frontrunner to fill in — though the silver fox might need CNN's permission to do the show.
Another strongly rumored candidate is award-winning host