Millen confirmed a new contract for captain Jedinak is edging ever closer.
"I think it is agreed, I don't know where we are exactly with it," he said of the Australia international, whose current deal runs out next June.
"Mile has been a great servant for the club. He is the captain, he is a leader and we want him to stay.
"We know he is happy at Crystal Palace and, while it has not been signed yet, I think it has almost been agreed."
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