Norwich manager Paul Lambert will have to wait on news of Darel Russell's appeal before naming the squad to face Southend.
Russell was shown a straight red card during the 2-0 defeat to Southampton at the weekend for a high challenge but the Canaries have appealed the decision to the Football Association.
Russell will hear on Tuesday afternoon if the card has been rescinded - making him available - but if the decision is upheld and the appeal deemed frivolous the midfielder could start a four-game ban.
Stephen Hughes is a likely replacement should Russell miss out as the League One leaders look for a win to keep clear of Leeds.
Defender Jens Berthel Askou is fit after a foot injury and may come into contention but left-back Adam Drury remains out with his thigh injury.
Zak Whitbread (calf) and striker Cody McDonald (thigh) are also missing.
Matt Paterson could be recalled to Southend's starting line-up.
The striker came off the bench to score his first goal for the Shrimpers in Saturday's 3-1 defeat at MK Dons and could be rewarded with a starting berth.
On-loan winger Sanchez Watt came through 90 minutes against Paul Ince's side after recovering from a sprained ankle and will hope to keep his place in the side.
Shrimpers boss Steve Tilson could recall left-back Scott Malone and midfielder Franck Moussa after the duo were left on the bench at the weekend.
Anthony Grant (ankle) and Stuart O'Keefe (hernia) will not be in contention to face the Canaries as relegation-threatened United look to end a dismal run of seven games without a win.
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