Coventry manager Steven Pressley could be without duo Callum Wilson and Dan Seaborne when they host Bradford.
Despite both players playing a full 90 minutes during Saturday's win at Crewe, the Sky Blues boss confirmed his concerns over their fitness prompting a potential reshuffle for the clash with Phil Parkinson's stuttering side.
Wilson, who added two more goals to his impressive season-tally at the weekend, could be replaced by Nathan Delfouneso or Nathan Eccleston while Cyrus Christie is the most likely replacement for Seaborne.
John Fleck will serve the final game of his two-match ban having picked up 10 yellow cards this season.
Bradford defender Adam Drury is expected to miss the game at Coventry due to a knee injury.
The on-loan Leeds left-back sustained medial ligament damage during the weekend win at Leyton Orient and was replaced by Carl McHugh, who is expected to start in midweek.
Striker James Hanson remains doubtful due to the back injury that kept him out at Orient, so recent loan signing Jon Stead is expected to resume after making his debut on Saturday.
Midfielder Nathan Doyle is struggling with a groin problem and defender James Meredith (foot) remains a long-term absentee.