Defender injured in Saturday's win over Charlton Athletic
Northampton Town defender Gabriel Zakuani will undergo a scan on his injured hamstrng to determine the extent of the injury.
“He is going for a scan and we'll get the results later in the week,” said boss Justin Edinburgh.
“It doesn’t look too promising but until we’ve had the results I wouldn’t want to put a timescale on it.
“It’s not the best news but these things happen and we just have to deal with it.
“It’s unfortunate for Gaby and speaking to the physio if we get him back before the end of the season then that is going to be a big plus.”