Hull forward Jarrod Bowen is a doubt for the game against QPR on Saturday.
The highly-rated Bowen, who has been linked with Premier League clubs, has back and shoulder problems and faces a fitness test.
Jordy De Wijs has been struggling with illness and will also be assessed ahead of the game.
Rangers head north on an appalling run, having lost nine of their past 11 Championship matches.
Hull, meanwhile, have lost their last two games.