Loan signing Danny Ward is the latest in a long line of players who are receiving treatment. The 19 year old was replaced on Tuesday night during Coventry City's 2-1 defeat at Swansea City after feeling his calf muscle pop.
Boothroyd confirmed to the CT: "He said he felt his calf pop and obviously that sort of language doesn't sound very good.
"We had a lot of players unavailable at Swansea and it looks like it could be one more on Saturday. These things happen; you have to ride it out."
"We're getting our run of injuries now but we have to hope that by the end of the season everybody is fit and flying and we'll be picking up three points on a regular basis."