Hull pair Josh Bowler and Martin Samuelsen are both doubtful for the home game against Huddersfield.
Bowler, on loan from Everton, missed Saturday’s FA Cup defeat to Chelsea with a heel injury and Samuelsen sustained a calf problem while making his home debut for the club in that match.
Hull boss Grant McCann, already contending with a lengthy injury list, is awaiting scan results on both players.
Defenders Matthew Pennington, Callum Elder and Jordy De Wijs are still unavailable, while Jon Toral, Kevin Stewart, Norbert Balogh and Angus MacDonald remain long-term absentees.
Jonathan Hogg is available again for Huddersfield after serving a two-game ban and fellow midfielder Matty Daly is expected to be fit after injury.
Alex Pritchard could return to contention after being sidelined since the end of November with a knee problem.
Another midfielder, Andy King, could make his first start for the club and fellow January loan signings Emile Smith Rowe and Richard Stearman look set to continue.
Defender Tommy Elphick (knee) and forward Collin Quaner (hip) remain doubtful.