The midfielder is struggling with a shoulder injury.
Ancelotti said: “Bellingham has been working on his own because he has to recover from the ankle problem he's been carrying since the Napoli game. He also needs proper recovery from his shoulder issue. He's doing specific work to strengthen it but he's been just fine to play and he'll get better with each passing day."
“I don't think he'll have surgery now. The shoulder is a particular joint.
"If it continues to pop out regularly, he'll need surgery but that's been ruled out for now because he feels okay and he is able to play."