Head coach David Wagner has given an update on his squad ahead of the visit of Russell Martin's Swansea City team to Carrow Road.
Dimi Giannoulis, who was replaced during the first half of Wednesday's 1-1 draw with QPR, will not be available for selection.
While Wagner will wait on the fitness of Isaac Hayden who played 80 minutes at Loftus Road after a lengthy spell out injured.
"Dimi will be out for tomorrow, he follows the concussion protocol." Wagner said.
"At the minute, he is how he should be but there can always be set-backs. We expect him back for training next week.
"I was very happy with his (Isaac Hayden) performance, and that he could carry on for 80 minutes. He felt very fatigued afterwards which is normal."
Wagner was also quizzed on the announcement of Onel Hernández's new contract, and the situation of others in the squad.
"I'm over the moon. This was one of our targets in the last weeks, making sure he stayed at the club. Since we came into the building, he was one of the players who produced numbers," he explained.
"He always works hard but also has the space to improve, that's why we're excited to go into the next two years with him. I haven't a shadow of a doubt he will work hard for it.
"We are smart enough that we all know, wherever we will be next season, we have to refresh this group. What that means exactly, we will see. We've made the first steps, there is a lot of work going on behind the scenes.
"Kieran (Dowell), we are in conversation with, but like with Onel, the important thing is he can get back to full fitness. Sam (Byram) was out for a long time and we'll just have to see how that progresses."
The visit of Martin and Swansea will be a challenging one for Wagner's men with the Swans in excellent form and creeping back up the Championship table.
Wagner also paid tribute to their head coach and his legacy during his playing days with the Canaries.
"We're at home against a tough side in great form, we'll have to make it as uncomfortable for them as possible. We want to win this game, do we have to win this game, maybe.
"I respect his career here as a player, I don't know if we came up against each other but I know he was a legend here.
"He's in his first steps as a manager with MK Dons and Swansea, and doing well, it'll be special for him coming back."