Shrewsbury Town defender Shane Cansdell-Sherriff has been ruled out for a month after injuring his shoulder in the 2-1 win over Southend United.
"The best case scenario is four-to-six weeks," manager Graham Turner told the club website.
"It looks likely the chances are he won't need surgery. It's a big blow for us but we've got to get over it."
The 29-year-old Australian is due to see a specialist to find out the extent of his injury.
"Him and Sharpsy [Ian Sharps] have got a good understanding as a pair of defenders and it's a pity we're losing Shane."