Kepa Arrizabalaga will miss the final group stage against Dinamo Zagreb.
Potter’s first-choice goalkeeper Kepa will be out with a foot injury and could also miss the weekend clash against Arsenal.
But the manager claims the Spaniard will be out only for a number of days.
Mateo Kovacic who missed training due to calf issue will be assessed before the game on Wednesday night,
Kalidou Koulibaly is now back in the squad after his injury as confirmed by the Chelsea manager.
“With Kepa, we’re looking at days rather than weeks, which is positive news,” Potter said.
“Kova has got a chance of being available for the game but we’ll make a complete decision on that tomorrow.
“Koulibaly should be fine. He trained today and providing there’s no reaction he’s available and in the squad.”
Potter revealed his conversation with Edouard Mendy who is yet to start a game under the new manager.
“I’ve had some good chats with him (Mendy) and he’s been great,” Potter said.
“He was honest enough to know that Kepa was playing well and that he had to wait. He kept his standards and now has an opportunity.”