Nigel Pearson says Tomas Kalas' recent injury record may come into consideration when the time comes to make a decision over his contract.
The central defender is one of 10 first team players whose deals expire next summer alongside Dan Bentley, Han-Noah Massengo, Jay Dasilva, Nahki Wells, Chris Martin, Zak Vyner, Antoine Semenyo, Max O'Leary and Timm Klose. City do have the option to exercise one-year extensions in the contracts of Semenyo, Vyner, O'Leary and Klose.
Kalas, 29, hasn't started in the league since March having sustained a groin and knee injury. After seven months out injured, he made his eagerly-anticipated return to action as a substitute against Millwall and West Brom last month before picking up a calf issue.