Hereford striker Andy Williams is expected to miss next Saturday's match at Needham.
"Willo has a hamstring strain," said manager Paul Caddis.
"He might be a week, ten days, two weeks.
"He said he felt it after the first couple of minutes against Brentwood but not enough to come off the pitch. He just thought it was stiffness.Since then it's got a little bit worse.
"We hope it's not too serious.
"He's doing his mobility stuff and that.
"Sometimes with those injuries, the biggest big of knowledge I have is through the player.
"And he's said, he's obviously an experienced player, it doesn't feel as it's needing a scan or anything like that.
"Hopefully he'll be alright."