Defender Scott Young is the latest addition to the Bluebirds' growing injury list.
Young limped out of the 1-1 draw with Division Two leaders Stoke with a hamstring injury.
According to Cardiff's official website, he could be out for four weeks.
Meanwhile, striker Peter Thorne was due to have the plaster taken off his ankle.
Thorne will then undergo a scan to get a clearer picture of his expected recovery time.
