Norwich have concerns over the fitness of defender Zak Whitbread and striker Aaron Wilbraham.
Both played in the victory over Leicester despite back problems, Wilbraham defying the pain barrier to notch his first goal for the club.
Whitbread was substituted through injury in the previous game against Preston but played the full 90 minutes at the Walkers Stadium and could feature.
Midfielder Simon Lappin is recovering well from an appendectomy and may make the squad for the first time in three weeks but striker Chris Martin remains unavailable with a hamstring injury.
Manager Paul Lambert can mastermind a move into the automatic promotion places with a win over the resurgent Robins should results go their way over the weekend.
Bristol City are waiting on the fitness of defenders Liam Fontaine and Steven Caulker and midfielder Kalifa Cisse.
Fontaine is nursing a sore ankle following the midweek victory over Portsmouth, while Cisse had stitches in a cut on his heel at half-time against Pompey but managed to complete the game.
A bruised hip ruled out on-loan centre-half Caulker on Tuesday night. He has been receiving treatment at parent club Tottenham but is expected to be fit.
Already without long-term casualties Louis Carey (skull fracture), Jamie McAllister (rib fracture), Cole Skuse and Jon Stead, manager Keith Millen will be hoping Fontaine and Cisse also make it.
Of the long-term injured, striker Stead is expected to be back in training within two weeks while midfielder Skuse will have an x-ray on Monday to check on his toe fracture.