Hull City's leading goalscorer Joe Gelhardt is a doubt for the Championship encounter with Wrexham on Wednesday (20:00 GMT).
The 23-year-old, who is on loan from Leeds United, has scored 10 goals and registered two assists in 19 games in the league so far this season.
Assistant head coach Dean Holden said there is an "injury concern" over Gelhardt in the pre-match press conference.
"He just felt something in his calf. He didn't train [on Monday]. We're just waiting on some more information in terms of scan results," Holden told BBC Radio Humberside.