Rangnick says he's spoken to both players about their situations.
Rangnick said: "I told him [Henderson] I would like him to stay, he is a fantastic goalkeeper. I would like to have him on board.
"I understand he wants to play but we are in three competitions. I can also understand his desire to get regular game time as a number one.
"It is the same situation [with Van de Beek]. I'm glad to have him in the squad. I had conversation with him two weeks ago and advised him to stay.
"He wants to play at the World Cup and [The Netherlands manager] Louis van Gaal told him to be a regular starter and he needs to play."
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