Wes Hoolahan and Cameron Jerome will be absent when Norwich face Brentford at Carrow Road.
Hoolahan has struggled recently with a hip problem while Jerome (back) has been to visit an osteopath in Birmingham this week.
Captain Ivo Pinto has recovered from hamstring trouble but James Husband (groin) is still not ready to return.
Teenage defender Jamal Lewis is poised to make his first appearance in the senior squad since sustaining a knee injury in pre-season.
Brentford will be without Josh Clarke and have a doubt over Ollie Watkins.
Right-back Clarke is unavailable after rolling his ankle against Barnsley last weekend and forward Watkins is also carrying an ankle niggle.
Striker Lasse Vibe could return to the squad after recovering from a hamstring injury.
Defender Henrik Dalsgaard (heel) is back in training but might not be risked while midfielder Alan Judge is still building up his fitness after a broken leg.