Nigel Pearson has confirmed veteran defender Timm Klose is training with the club but refused to elaborate on a potential deal.
On Thursday, the Bristol City manager revealed the club were looking to strengthen at the back following the long-term injury to Nathan Baker.
Pearson was dealt a further blow in the dramatic 3-2 victory over Cardiff when Rob Atkinson hobbled off after just 18 minutes which the manager later confirmed was a back injury.