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.
Holden said they will have to wait and see if Gelhardt is fit to play and keep “fingers crossed”.
“In terms of the numbers he’s produced this season, I think he’s gone a little bit under the radar in terms of his work-rate and everything he does for the team,” Holden said.
“But his goals and assists stand up against most players in that position. So if he’s not going to be with us, it’ll be a huge miss for us.
“It will be up to somebody else in the squad or the group of guys to stake a claim for their place in the team. Hopefully someone can step up and see us through that period.”
Hull have also been without second top goalscorer Oli McBurnie, who missed eight games after picking up a calf injury at Birmingham on 18 October.
But the six-goal striker has been back in training and was among the substitutes for the 4-1 defeat by Middlesbrough on Friday.
Holden added: “We expect him to get some minutes [against Wrexham].”