Dean Smith confirmed that Aaron Ramsey, Todd Cantwell and Sam Bryam will all miss Boxing Day's trip to Luton Town.
Speaking ahead of the game, the head coach confirmed that a few players will not be fit enough to make the trip to Kenilworth Road.
"We've got a couple out injured. AJ felt his knee, Todd felt his groin, so he'll be out too. We'll look at a couple of others.
"Sam Byram will be doing a restart session today and training with us tomorrow, but won't be available for Monday, and Lungi is a little bit further away."
With the busy festive period taking over, Smith also confirmed the players' training schedule and that the club will be travelling to Bedfordshire on the day.
"We'll be in today, tomorrow, and Christmas morning. The players will have some time with their families. Then we'll travel on the day to Luton."
On the opposition, the Hatters recently appointed Rob Edwards to replace Nathan Jones, who departed for Southampton.
Despite the change in manager, the Norwich head coach doesn't expect too much change from Luton.
"They’ve only had the one game since the World Cup, as the Millwall game got called off. They’ve not been as good at Kenilworth Road as they have on the road.
"It's a tough place to go. It'll be a tough afternoon, but we're more than capable of getting three points."