The Dane is on-loan at Borussia Monchengladbach, where they're keen to sign him permanently.
"As it is right now, he is at Chelsea again this summer. It is important for Andreas that he plays. He will not return to Chelsea to sit on the bench," says the player's father, who is also his agent, Sten Christensen to BT.
"It is this transfer window that determines how Andreas' situation plays out in the summer.